Chemistry, asked by nagarajan2, 1 year ago

both hydrogen and helium are present in periodic table what is the special character these two elements

Answers

Answered by shekharRajvansh1

1

hydrogen has valency 1 where as helium have 2

Answered by rockstar37

7

hydrogen have only electron present in its nulceus ....helium also have only one electron.
Because of this these both have zero valency

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