Elements
| Chemical elements in the seventh period | |||||||||||||||||||||||||||||||||
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| Group → | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |||||||||||||||
| ↓ Period | |||||||||||||||||||||||||||||||||
| 7 | 87 Fr |
88 Ra |
89 Ac |
90 Th |
91 Pa |
92 U |
93 Np |
94 Pu |
95 Am |
96 Cm |
97 Bk |
98 Cf |
99 Es |
100 Fm |
101 Md |
102 No |
103 Lr |
104 Rf |
105 Db |
106 Sg |
107 Bh |
108 Hs |
109 Mt |
110 Ds |
111 Rg |
112 Cn |
113 Uut |
114 Fl |
115 Uup |
116 Lv |
117 Uus |
118 Uuo |
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Some element categories in the periodic table
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Chemical element Chemical series Electron configuration 87 Fr Francium Alkali metal 7s1 88 Ra Radium Alkaline earth metal 7s2 89 Ac Actinium Actinide 6d1 7s2 (*) 90 Th Thorium Actinide 6d2 7s2 (*) 91 Pa Protactinium Actinide 5f2 6d1 7s2 (*) 92 U Uranium Actinide 5f3 6d1 7s2 (*) 93 Np Neptunium Actinide 5f4 6d1 7s2 (*) 94 Pu Plutonium Actinide 5f6 7s2 95 Am Americium Actinide 5f7 7s2 96 Cm Curium Actinide 5f7 6d1 7s2 (*) 97 Bk Berkelium Actinide 5f9 7s2 98 Cf Californium Actinide 5f10 7s2 99 Es Einsteinium Actinide 5f11 7s2 100 Fm Fermium Actinide 5f12 7s2 101 Md Mendelevium Actinide 5f13 7s2 102 No Nobelium Actinide 5f14 7s2 103 Lr Lawrencium Actinide 5f14 7s2 7p1 (probably) (**) 104 Rf Rutherfordium Transition metal 5f14 6d2 7s2 (probably) 105 Db Dubnium Transition metal 5f14 6d3 7s2 (?) 106 Sg Seaborgium Transition metal 5f14 6d4 7s2 (?) 107 Bh Bohrium Transition metal 5f14 6d5 7s2 (?) 108 Hs Hassium Transition metal 5f14 6d6 7s2 (?) 109 Mt Meitnerium Transition metal (?) 5f14 6d7 7s2 (?) 110 Ds Darmstadtium Transition metal (?) 5f14 6d8 7s2 (?) 111 Rg Roentgenium Transition metal (?) 5f14 6d9 7s2 (?) 112 Cn Copernicium Transition metal 5f14 6d10 7s2 (?) 113 Uut Ununtrium Post-transition metal (?) 5f14 6d10 7s2 7p1 (?) 114 Fl Flerovium Post-transition metal (?) 5f14 6d10 7s2 7p2 (?) 115 Uup Ununpentium Post-transition metal (?) 5f14 6d10 7s2 7p3 (?) 116 Lv Livermorium Post-transition metal (?) 5f14 6d10 7s2 7p4 (?) 117 Uus Ununseptium Halogen (?) 5f14 6d10 7s2 7p5 (?) 118 Uuo Ununoctium Noble gas (?) 5f14 6d10 7s2 7p6 (?)
(?) Prediction
(*) Exception to the Madelung rule.
(**) Probably an exception to the Madelung rule.
Read more about this topic: Period 7 Element
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“The Laws of Nature are just, but terrible. There is no weak mercy in them. Cause and consequence are inseparable and inevitable. The elements have no forbearance. The fire burns, the water drowns, the air consumes, the earth buries. And perhaps it would be well for our race if the punishment of crimes against the Laws of Man were as inevitable as the punishment of crimes against the Laws of Nature—were Man as unerring in his judgments as Nature.”
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