Electron Configuration Flashcards: All 118 Elements
Practice neutral-atom ground-state electron configurations for every named element, with NIST-based shorthand and clearly labeled predictions.
Om denne bunke
These 131 English flashcards practice neutral-atom ground-state electron configurations for all 118 currently named elements, from hydrogen through oganesson. Every element-to-configuration card includes the name, symbol, and atomic number. Thirteen extra reverse cards ask for the element behind a selected high-value irregular configuration.
What’s included
- 118 element-to-configuration cards in noble-gas shorthand.
- 13 configuration-to-element cards for Cr, Cu, Nb, Mo, Ru, Rh, Pd, Ag, Ce, Gd, Pt, Au, and Cm.
- A sequence by increasing atomic number, with each reverse card placed at least six unrelated cards after its matching forward card.
- The requested answer first on every back, with source qualifiers appended for lawrencium and the predicted elements 109–118.
- NIST ASD ground-shell assignments through hassium. Meitnerium through oganesson are labeled as PubChem/LANL predictions; lawrencium follows NIST’s current
7p¹assignment.
What’s excluded
The deck does not include full expanded configurations, ions, excited states, orbital-box diagrams, quantum numbers, derivation drills, oxidation states, or other element properties. It also avoids automatic reverse cards and separate name, symbol, and atomic-number permutations for every element.
Sources and reuse
The primary factual sources are the NIST Atomic Spectra Database, its ground-shell guidance, and the NIST periodic table. PubChem’s element pages expose property-level sources and provide the stated LANL prediction convention for elements 109–118. For roentgenium, this deck follows the exact PubChem element entry and LANL page, which both predict [Rn] 5f¹⁴ 6d⁹ 7s²; PubChem’s downloadable table instead lists [Rn] 5f¹⁴ 6d¹⁰ 7s¹. This documented source disagreement is not treated as a second accepted answer. IUPAC confirms the current names and symbols.
The questions, answers, selection, order, and cover were produced independently. No competitor cards, prose, tables, logos, or trade dress were copied. The CC0 label covers only the original wording, organization, metadata, and generated media that Open Study Contributor can license; it does not claim ownership of scientific facts or source material.
Kort i denne bunke
Kort 1
Spørgsmål
Hydrogen (H, Z=1) — neutral ground-state configuration
Svar
1s¹
Kort 2
Spørgsmål
Helium (He, Z=2) — neutral ground-state configuration
Svar
1s²
Kort 3
Spørgsmål
Lithium (Li, Z=3) — neutral ground-state configuration
Svar
[He] 2s¹
Kort 4
Spørgsmål
Beryllium (Be, Z=4) — neutral ground-state configuration
Svar
[He] 2s²
Kort 5
Spørgsmål
Boron (B, Z=5) — neutral ground-state configuration
Svar
[He] 2s² 2p¹
Kort 6
Spørgsmål
Carbon (C, Z=6) — neutral ground-state configuration
Svar
[He] 2s² 2p²
Kort 7
Spørgsmål
Nitrogen (N, Z=7) — neutral ground-state configuration
Svar
[He] 2s² 2p³
Kort 8
Spørgsmål
Oxygen (O, Z=8) — neutral ground-state configuration
Svar
[He] 2s² 2p⁴
Kort 9
Spørgsmål
Fluorine (F, Z=9) — neutral ground-state configuration
Svar
[He] 2s² 2p⁵
Kort 10
Spørgsmål
Neon (Ne, Z=10) — neutral ground-state configuration
Svar
[He] 2s² 2p⁶
Kort 11
Spørgsmål
Sodium (Na, Z=11) — neutral ground-state configuration
Svar
[Ne] 3s¹
Kort 12
Spørgsmål
Magnesium (Mg, Z=12) — neutral ground-state configuration
Svar
[Ne] 3s²
Kort 13
Spørgsmål
Aluminum (Al, Z=13) — neutral ground-state configuration
Svar
[Ne] 3s² 3p¹
Kort 14
Spørgsmål
Silicon (Si, Z=14) — neutral ground-state configuration
Svar
[Ne] 3s² 3p²
Kort 15
Spørgsmål
Phosphorus (P, Z=15) — neutral ground-state configuration
Svar
[Ne] 3s² 3p³
Kort 16
Spørgsmål
Sulfur (S, Z=16) — neutral ground-state configuration
Svar
[Ne] 3s² 3p⁴
Kort 17
Spørgsmål
Chlorine (Cl, Z=17) — neutral ground-state configuration
Svar
[Ne] 3s² 3p⁵
Kort 18
Spørgsmål
Argon (Ar, Z=18) — neutral ground-state configuration
Svar
[Ne] 3s² 3p⁶
Kort 19
Spørgsmål
Potassium (K, Z=19) — neutral ground-state configuration
Svar
[Ar] 4s¹
Kort 20
Spørgsmål
Calcium (Ca, Z=20) — neutral ground-state configuration
Svar
[Ar] 4s²
Kort 21
Spørgsmål
Scandium (Sc, Z=21) — neutral ground-state configuration
Svar
[Ar] 3d¹ 4s²
Kort 22
Spørgsmål
Titanium (Ti, Z=22) — neutral ground-state configuration
Svar
[Ar] 3d² 4s²
Kort 23
Spørgsmål
Vanadium (V, Z=23) — neutral ground-state configuration
Svar
[Ar] 3d³ 4s²
Kort 24
Spørgsmål
Chromium (Cr, Z=24) — neutral ground-state configuration
Svar
[Ar] 3d⁵ 4s¹
Kort 25
Spørgsmål
Manganese (Mn, Z=25) — neutral ground-state configuration
Svar
[Ar] 3d⁵ 4s²
Kort 26
Spørgsmål
Iron (Fe, Z=26) — neutral ground-state configuration
Svar
[Ar] 3d⁶ 4s²
Kort 27
Spørgsmål
Cobalt (Co, Z=27) — neutral ground-state configuration
Svar
[Ar] 3d⁷ 4s²
Kort 28
Spørgsmål
Nickel (Ni, Z=28) — neutral ground-state configuration
Svar
[Ar] 3d⁸ 4s²
Kort 29
Spørgsmål
Copper (Cu, Z=29) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s¹
Kort 30
Spørgsmål
Zinc (Zn, Z=30) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s²
Kort 31
Spørgsmål
Gallium (Ga, Z=31) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s² 4p¹
Kort 32
Spørgsmål
Neutral ground-state configuration: [Ar] 3d⁵ 4s¹
Svar
Chromium (Cr, Z=24).
Kort 33
Spørgsmål
Germanium (Ge, Z=32) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s² 4p²
Kort 34
Spørgsmål
Arsenic (As, Z=33) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s² 4p³
Kort 35
Spørgsmål
Selenium (Se, Z=34) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s² 4p⁴
Kort 36
Spørgsmål
Bromine (Br, Z=35) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s² 4p⁵
Kort 37
Spørgsmål
Krypton (Kr, Z=36) — neutral ground-state configuration
Svar
[Ar] 3d¹⁰ 4s² 4p⁶
Kort 38
Spørgsmål
Neutral ground-state configuration: [Ar] 3d¹⁰ 4s¹
Svar
Copper (Cu, Z=29).
Kort 39
Spørgsmål
Rubidium (Rb, Z=37) — neutral ground-state configuration
Svar
[Kr] 5s¹
Kort 40
Spørgsmål
Strontium (Sr, Z=38) — neutral ground-state configuration
Svar
[Kr] 5s²
Kort 41
Spørgsmål
Yttrium (Y, Z=39) — neutral ground-state configuration
Svar
[Kr] 4d¹ 5s²
Kort 42
Spørgsmål
Zirconium (Zr, Z=40) — neutral ground-state configuration
Svar
[Kr] 4d² 5s²
Kort 43
Spørgsmål
Niobium (Nb, Z=41) — neutral ground-state configuration
Svar
[Kr] 4d⁴ 5s¹
Kort 44
Spørgsmål
Molybdenum (Mo, Z=42) — neutral ground-state configuration
Svar
[Kr] 4d⁵ 5s¹
Kort 45
Spørgsmål
Technetium (Tc, Z=43) — neutral ground-state configuration
Svar
[Kr] 4d⁵ 5s²
Kort 46
Spørgsmål
Ruthenium (Ru, Z=44) — neutral ground-state configuration
Svar
[Kr] 4d⁷ 5s¹
Kort 47
Spørgsmål
Rhodium (Rh, Z=45) — neutral ground-state configuration
Svar
[Kr] 4d⁸ 5s¹
Kort 48
Spørgsmål
Palladium (Pd, Z=46) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰
Kort 49
Spørgsmål
Silver (Ag, Z=47) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s¹
Kort 50
Spørgsmål
Cadmium (Cd, Z=48) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s²
Kort 51
Spørgsmål
Indium (In, Z=49) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s² 5p¹
Kort 52
Spørgsmål
Tin (Sn, Z=50) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s² 5p²
Kort 53
Spørgsmål
Neutral ground-state configuration: [Kr] 4d⁴ 5s¹
Svar
Niobium (Nb, Z=41).
Kort 54
Spørgsmål
Antimony (Sb, Z=51) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s² 5p³
Kort 55
Spørgsmål
Neutral ground-state configuration: [Kr] 4d⁵ 5s¹
Svar
Molybdenum (Mo, Z=42).
Kort 56
Spørgsmål
Tellurium (Te, Z=52) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s² 5p⁴
Kort 57
Spørgsmål
Iodine (I, Z=53) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s² 5p⁵
Kort 58
Spørgsmål
Neutral ground-state configuration: [Kr] 4d⁷ 5s¹
Svar
Ruthenium (Ru, Z=44).
Kort 59
Spørgsmål
Xenon (Xe, Z=54) — neutral ground-state configuration
Svar
[Kr] 4d¹⁰ 5s² 5p⁶
Kort 60
Spørgsmål
Neutral ground-state configuration: [Kr] 4d⁸ 5s¹
Svar
Rhodium (Rh, Z=45).
Kort 61
Spørgsmål
Cesium (Cs, Z=55) — neutral ground-state configuration
Svar
[Xe] 6s¹
Kort 62
Spørgsmål
Barium (Ba, Z=56) — neutral ground-state configuration
Svar
[Xe] 6s²
Kort 63
Spørgsmål
Neutral ground-state configuration: [Kr] 4d¹⁰
Svar
Palladium (Pd, Z=46).
Kort 64
Spørgsmål
Lanthanum (La, Z=57) — neutral ground-state configuration
Svar
[Xe] 5d¹ 6s²
Kort 65
Spørgsmål
Neutral ground-state configuration: [Kr] 4d¹⁰ 5s¹
Svar
Silver (Ag, Z=47).
Kort 66
Spørgsmål
Cerium (Ce, Z=58) — neutral ground-state configuration
Svar
[Xe] 4f¹ 5d¹ 6s²
131 kort
Electron Configuration Flashcards: All 118 Elements
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Kort 67
Spørgsmål
Praseodymium (Pr, Z=59) — neutral ground-state configuration
Svar
[Xe] 4f³ 6s²
Kort 68
Spørgsmål
Neodymium (Nd, Z=60) — neutral ground-state configuration
Svar
[Xe] 4f⁴ 6s²
Kort 69
Spørgsmål
Promethium (Pm, Z=61) — neutral ground-state configuration
Svar
[Xe] 4f⁵ 6s²
Kort 70
Spørgsmål
Samarium (Sm, Z=62) — neutral ground-state configuration
Svar
[Xe] 4f⁶ 6s²
Kort 71
Spørgsmål
Europium (Eu, Z=63) — neutral ground-state configuration
Svar
[Xe] 4f⁷ 6s²
Kort 72
Spørgsmål
Gadolinium (Gd, Z=64) — neutral ground-state configuration
Svar
[Xe] 4f⁷ 5d¹ 6s²
Kort 73
Spørgsmål
Terbium (Tb, Z=65) — neutral ground-state configuration
Svar
[Xe] 4f⁹ 6s²
Kort 74
Spørgsmål
Dysprosium (Dy, Z=66) — neutral ground-state configuration
Svar
[Xe] 4f¹⁰ 6s²
Kort 75
Spørgsmål
Neutral ground-state configuration: [Xe] 4f¹ 5d¹ 6s²
Svar
Cerium (Ce, Z=58).
Kort 76
Spørgsmål
Holmium (Ho, Z=67) — neutral ground-state configuration
Svar
[Xe] 4f¹¹ 6s²
Kort 77
Spørgsmål
Erbium (Er, Z=68) — neutral ground-state configuration
Svar
[Xe] 4f¹² 6s²
Kort 78
Spørgsmål
Thulium (Tm, Z=69) — neutral ground-state configuration
Svar
[Xe] 4f¹³ 6s²
Kort 79
Spørgsmål
Ytterbium (Yb, Z=70) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 6s²
Kort 80
Spørgsmål
Lutetium (Lu, Z=71) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹ 6s²
Kort 81
Spørgsmål
Neutral ground-state configuration: [Xe] 4f⁷ 5d¹ 6s²
Svar
Gadolinium (Gd, Z=64).
Kort 82
Spørgsmål
Hafnium (Hf, Z=72) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d² 6s²
Kort 83
Spørgsmål
Tantalum (Ta, Z=73) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d³ 6s²
Kort 84
Spørgsmål
Tungsten (W, Z=74) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d⁴ 6s²
Kort 85
Spørgsmål
Rhenium (Re, Z=75) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d⁵ 6s²
Kort 86
Spørgsmål
Osmium (Os, Z=76) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d⁶ 6s²
Kort 87
Spørgsmål
Iridium (Ir, Z=77) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d⁷ 6s²
Kort 88
Spørgsmål
Platinum (Pt, Z=78) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d⁹ 6s¹
Kort 89
Spørgsmål
Gold (Au, Z=79) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s¹
Kort 90
Spørgsmål
Mercury (Hg, Z=80) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s²
Kort 91
Spørgsmål
Thallium (Tl, Z=81) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹
Kort 92
Spørgsmål
Lead (Pb, Z=82) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²
Kort 93
Spørgsmål
Bismuth (Bi, Z=83) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³
Kort 94
Spørgsmål
Polonium (Po, Z=84) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴
Kort 95
Spørgsmål
Neutral ground-state configuration: [Xe] 4f¹⁴ 5d⁹ 6s¹
Svar
Platinum (Pt, Z=78).
Kort 96
Spørgsmål
Astatine (At, Z=85) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵
Kort 97
Spørgsmål
Radon (Rn, Z=86) — neutral ground-state configuration
Svar
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶
Kort 98
Spørgsmål
Neutral ground-state configuration: [Xe] 4f¹⁴ 5d¹⁰ 6s¹
Svar
Gold (Au, Z=79).
Kort 99
Spørgsmål
Francium (Fr, Z=87) — neutral ground-state configuration
Svar
[Rn] 7s¹
Kort 100
Spørgsmål
Radium (Ra, Z=88) — neutral ground-state configuration
Svar
[Rn] 7s²
Kort 101
Spørgsmål
Actinium (Ac, Z=89) — neutral ground-state configuration
Svar
[Rn] 6d¹ 7s²
Kort 102
Spørgsmål
Thorium (Th, Z=90) — neutral ground-state configuration
Svar
[Rn] 6d² 7s²
Kort 103
Spørgsmål
Protactinium (Pa, Z=91) — neutral ground-state configuration
Svar
[Rn] 5f² 6d¹ 7s²
Kort 104
Spørgsmål
Uranium (U, Z=92) — neutral ground-state configuration
Svar
[Rn] 5f³ 6d¹ 7s²
Kort 105
Spørgsmål
Neptunium (Np, Z=93) — neutral ground-state configuration
Svar
[Rn] 5f⁴ 6d¹ 7s²
Kort 106
Spørgsmål
Plutonium (Pu, Z=94) — neutral ground-state configuration
Svar
[Rn] 5f⁶ 7s²
Kort 107
Spørgsmål
Americium (Am, Z=95) — neutral ground-state configuration
Svar
[Rn] 5f⁷ 7s²
Kort 108
Spørgsmål
Curium (Cm, Z=96) — neutral ground-state configuration
Svar
[Rn] 5f⁷ 6d¹ 7s²
Kort 109
Spørgsmål
Berkelium (Bk, Z=97) — neutral ground-state configuration
Svar
[Rn] 5f⁹ 7s²
Kort 110
Spørgsmål
Californium (Cf, Z=98) — neutral ground-state configuration
Svar
[Rn] 5f¹⁰ 7s²
Kort 111
Spørgsmål
Einsteinium (Es, Z=99) — neutral ground-state configuration
Svar
[Rn] 5f¹¹ 7s²
Kort 112
Spørgsmål
Fermium (Fm, Z=100) — neutral ground-state configuration
Svar
[Rn] 5f¹² 7s²
Kort 113
Spørgsmål
Mendelevium (Md, Z=101) — neutral ground-state configuration
Svar
[Rn] 5f¹³ 7s²
Kort 114
Spørgsmål
Nobelium (No, Z=102) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 7s²
Kort 115
Spørgsmål
Lawrencium (Lr, Z=103) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 7s² 7p¹ — NIST ASD.
Kort 116
Spørgsmål
Rutherfordium (Rf, Z=104) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d² 7s²
Kort 117
Spørgsmål
Neutral ground-state configuration: [Rn] 5f⁷ 6d¹ 7s²
Svar
Curium (Cm, Z=96).
Kort 118
Spørgsmål
Dubnium (Db, Z=105) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d³ 7s²
Kort 119
Spørgsmål
Seaborgium (Sg, Z=106) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d⁴ 7s²
Kort 120
Spørgsmål
Bohrium (Bh, Z=107) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d⁵ 7s²
Kort 121
Spørgsmål
Hassium (Hs, Z=108) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d⁶ 7s²
Kort 122
Spørgsmål
Meitnerium (Mt, Z=109) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d⁷ 7s² — predicted by PubChem/LANL.
Kort 123
Spørgsmål
Darmstadtium (Ds, Z=110) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d⁸ 7s² — predicted by PubChem/LANL.
Kort 124
Spørgsmål
Roentgenium (Rg, Z=111) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d⁹ 7s² — predicted by PubChem/LANL.
Kort 125
Spørgsmål
Copernicium (Cn, Z=112) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d¹⁰ 7s² — predicted by PubChem/LANL.
Kort 126
Spørgsmål
Nihonium (Nh, Z=113) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹ — predicted by PubChem/LANL.
Kort 127
Spørgsmål
Flerovium (Fl, Z=114) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p² — predicted by PubChem/LANL.
Kort 128
Spørgsmål
Moscovium (Mc, Z=115) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³ — predicted by PubChem/LANL.
Kort 129
Spørgsmål
Livermorium (Lv, Z=116) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴ — predicted by PubChem/LANL.
Kort 130
Spørgsmål
Tennessine (Ts, Z=117) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵ — predicted by PubChem/LANL.
Kort 131
Spørgsmål
Oganesson (Og, Z=118) — neutral ground-state configuration
Svar
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶ — predicted by PubChem/LANL.
131 kort
Electron Configuration Flashcards: All 118 Elements
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