Question

Valency,atomic no. And symbol for:
1.nikel
2.cobalt
3.copper
4.zinc

Answer 1

No. sy name valency

27 Co Cobalt 5, 4, 3, 2, 1, 0, -1

28 Ni Nickel 6, 4, 3, 2, 1, 0, -1

29 Cu Copper 4, 3, 2, 1, 0

30 Zn Zinc 2, 1, 0

Answer 2

Heya here is your answer

❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

1) Nikel: valency : 2

Atomic no : 28

Symbol : ni

2) Cobalt : valency :2

Atomic no : 27

Symbol: Co

3) copper : valency;2

Atomic no :29

Symbol: cu

4) zinc : valency :2

Atomic no :30

Symbol: Zn

hope it's uses

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