CBSE BOARD X, asked by anuragmalik, 1 year ago

how we can find the valency of any atom??

Answers

Answered by zeeshanbhai786
1
In simple words
take one example
oxygen atomic number is 8
electronic configuration (2,6)
so to complete the outermost shell or to achieve octet state(8) oxygen needs 2 more electrons.so the valency of oxygen is 2.
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