elements with valency +/-1 are called
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Element : Valence : 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
Explanation:
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