Question

write the formulaes for valency of metals and non metals​

Answer 1

Explanation:

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Answer 2

Element X is a metal with a valency 2, Y is a non-metal with a valency 3. If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.




The valency of X is 2. The valency of Y is 3. Y is diatomic so, Y
2
​
.
Direct combination:
3X+Y
2
​
→X
3
​
Y
2
​