Answer:
1 Hydrogen 1s1
2 Helium 1s2
3 Lithium [He]2s1
4 Beryllium [He]2s2
5 Boron [He]2s22p1
6 Carbon [He]2s22p2
7 Nitrogen [He]2s22p3
8 Oxygen [He]2s22p4
9 Fluorine [He]2s22p5
10 Neon [He]2s22p6
11 Sodium [Ne]3s1
12 Magnesium [Ne]3s2
13 Aluminum [Ne]3s23p1
14 Silicon [Ne]3s23p2
15 Phosphorus [Ne]3s23p3
16 Sulfur [Ne]3s23p4
17 Chlorine [Ne]3s23p5
18 Argon [Ne]3s23p6
19 Potassium [Ar]4s1
20 Calcium [Ar]4s2
21 Scandium [Ar]3d14s2
22 Titanium [Ar]3d24s2
23 Vanadium [Ar]3d34s2
24 Chromium [Ar]3d54s1
25 Manganese [Ar]3d54s2
26 Iron [Ar]3d64s2
27 Cobalt [Ar]3d74s2
28 Nickel [Ar]3d84s2
29 Copper [Ar]3d104s1
30 Zinc [Ar]3d104s2
31 Gallium [Ar]3d104s24p1
32 Germanium [Ar]3d104s24p2
33 Arsenic [Ar]3d104s24p3
34 Selenium [Ar]3d104s24p4
35 Bromine [Ar]3d104s24p5
36 Krypton [Ar]3d104s24p6
37 Rubidium [Kr]5s1
38 Strontium [Kr]5s2
39 Yttrium [Kr]4d15s2
40 Zirconium [Kr]4d25s2
41 Niobium [Kr]4d45s1
42 Molybdenum [Kr]4d55s1
43 Technetium [Kr]4d55s2
44 Ruthenium [Kr]4d75s1
45 Rhodium [Kr]4d85s1
46 Palladium [Kr]4d10
47 Silver [Kr]4d105s1
48 Cadmium [Kr]4d105s2
49 Indium [Kr]4d105s25p1
50 Tin [Kr]4d105s25p2
51 Antimony [Kr]4d105s25p3
52 Tellurium [Kr]4d105s25p4
53 Iodine [Kr]4d105s25p5
54 Xenon [Kr]4d105s25p6
55 Cesium [Xe]6s1
56 Barium [Xe]6s2
57 Lanthanum [Xe]5d16s2
58 Cerium [Xe]4f15d16s2
59 Praseodymium [Xe]4f36s2
60 Neodymium [Xe]4f46s2
61 Promethium [Xe]4f56s2
62 Samarium [Xe]4f66s2
63 Europium [Xe]4f76s2
64 Gadolinium [Xe]4f75d16s2
65 Terbium [Xe]4f96s2
66 Dysprosium [Xe]4f106s2
67 Holmium [Xe]4f116s2
68 Erbium [Xe]4f126s2
69 Thulium [Xe]4f136s2
70 Ytterbium [Xe]4f146s2
71 Lutetium [Xe]4f145d16s2
72 Hafnium [Xe]4f145d26s2
73 Tantalum [Xe]4f145d36s2
74 Tungsten [Xe]4f145d46s2
75 Rhenium [Xe]4f145d56s2
76 Osmium [Xe]4f145d66s2
77 Iridium [Xe]4f145d76s2
78 Platinum [Xe]4f145d96s1
79 Gold [Xe]4f145d106s1
80 Mercury [Xe]4f145d106s2
81 Thallium [Xe]4f145d106s26p1
82 Lead [Xe]4f145d106s26p2
83 Bismuth [Xe]4f145d106s26p3
84 Polonium [Xe]4f145d106s26p4
85 Astatine [Xe]4f145d106s26p5
86 Radon [Xe]4f145d106s26p6
87 Francium [Rn]7s1
88 Radium [Rn]7s2
89 Actinium [Rn]6d17s2
90 Thorium [Rn]6d27s2
91 Protactinium [Rn]5f26d17s2
92 Uranium [Rn]5f36d17s2
93 Neptunium [Rn]5f46d17s2
94 Plutonium [Rn]5f67s2
95 Americium [Rn]5f77s2
96 Curium [Rn]5f76d17s2
97 Berkelium [Rn]5f97s2
98 Californium [Rn]5f107s2
99 Einsteinium [Rn]5f117s2
100 Fermium [Rn]5f127s2
101 Mendelevium [Rn]5f137s2
102 Nobelium [Rn]5f147s2
103 Lawrencium [Rn]5f147s27p1
104 Rutherfordium [Rn]5f146d27s2
105 Dubnium *[Rn]5f146d37s2
106 Seaborgium *[Rn]5f146d47s2
107 Bohrium *[Rn]5f146d57s2
108 Hassium *[Rn]5f146d67s2
109 Meitnerium *[Rn]5f146d77s2
110 Darmstadtium *[Rn]5f146d97s1
111 Roentgenium *[Rn]5f146d107s1
112 Copernium *[Rn]5f146d107s2
113 Nihonium *[Rn]5f146d107s27p1
114 Flerovium *[Rn]5f146d107s27p2
115 Moscovium *[Rn]5f146d107s27p3
116 Livermorium *[Rn]5f146d107s27p4
117 Tennessine *[Rn]5f146d107s27p5
118 Oganesson *[Rn]5f146d107s27p6
Explanation:
