Question

valances of all elements ​

Answer 1

Hydrogen (-1), +1
2 Helium 0
3 Lithium +1
4 Beryllium +2
5 Boron -3, +3
6 Carbon (+2), +4
7 Nitrogen -3, -2, -1, (+1), +2, +3, +4, +5
8 Oxygen -2
9 Fluorine -1, (+1)
10 Neon 0
11 Sodium +1
12 Magnesium +2
13 Aluminum +3
14 Silicon -4, (+2), +4
15 Phosphorus -3, +1, +3, +5
16 Sulfur -2, +2, +4, +6
17 Chlorine -1, +1, (+2), +3, (+4), +5, +7
18 Argon 0
19 Potassium +1
20 Calcium +2
21 Scandium +3
22 Titanium +2, +3, +4
23 Vanadium +2, +3, +4, +5
24 Chromium +2, +3, +6
25 Manganese +2, (+3), +4, (+6), +7
26 Iron +2, +3, (+4), (+6)
27 Cobalt +2, +3, (+4)
28 Nickel (+1), +2, (+3), (+4)
29 Copper +1, +2, (+3)
30 Zinc +2
31 Gallium (+2). +3
32 Germanium -4, +2, +4
33 Arsenic -3, (+2), +3, +5
34 Selenium -2, (+2), +4, +6
35 Bromine -1, +1, (+3), (+4), +5
36 Krypton 0
37 Rubidium +1
38 Strontium +2
39 Yttrium +3
40 Zirconium (+2), (+3), +4
41 Niobium (+2), +3, (+4), +5
42 Molybdenum (+2), +3, (+4), (+5), +6
43 Technetium +6
44 Ruthenium (+2), +3, +4, (+6), (+7), +8
45 Rhodium (+2), (+3), +4, (+6)
46 Palladium +2, +4, (+6)
47 Silver +1, (+2), (+3)
48 Cadmium (+1), +2
49 Indium (+1), (+2), +3
50 Tin +2, +4
51 Antimony -3, +3, (+4), +5
52 Tellurium -2, (+2), +4, +6
53 Iodine -1, +1, (+3), (+4), +5, +7
54 Xenon 0
55 Cesium +1
56 Barium +2
57 Lanthanum +3
58 Cerium +3, +4
59 Praseodymium +3
60 Neodymium +3, +4
61 Promethium +3
62 Samarium (+2), +3
63 Europium (+2), +3
64 Gadolinium +3
65 Terbium +3, +4
66 Dysprosium +3
67 Holmium +3
68 Erbium +3
69 Thulium (+2), +3
70 Ytterbium (+2), +3
71 Lutetium +3
72 Hafnium +4
73 Tantalum (+3), (+4), +5
74 Tungsten (+2), (+3), (+4), (+5), +6
75 Rhenium (-1), (+1), +2, (+3), +4, (+5), +6, +7
76 Osmium (+2), +3, +4, +6, +8
77 Iridium (+1), (+2), +3, +4, +6
78 Platinum (+1), +2, (+3), +4, +6
79 Gold +1, (+2), +3
80 Mercury +1, +2
81 Thallium +1, (+2), +3
82 Lead +2, +4
83 Bismuth (-3), (+2), +3, (+4), (+5)
84 Polonium (-2), +2, +4, (+6)
85 Astatine ?
86 Radon 0
87 Francium ?
88 Radium +2
89 Actinium +3
90 Thorium +4
91 Protactinium +5
92 Uranium (+2), +3, +4, (+5), +6



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