Science, asked by harivatsshakya, 3 months ago

Q.2 Find the valencies of the underlined element
1) BaCl2
2) FeO 2,3
3) Fe2O3
4) CaCO3
5) Na,
6) Al(OH)3
7) SO2
8) NH3

ba
fe
fe2
co3
na
al
s
n

Answers

Answered by rishitharunkana

0

Answer:

we can find these with electronic configuration

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