Chemistry, asked by akashmanasi, 11 months ago

why hydrogen molecule has less size then helium.

Answers

Answered by srush1

As hydrogen molecule (H2) contain two electrons, hence experiences strong nuclear pull from nucleus hence has smaller size

srush1: ty for marking as brainlist

10562014: no i m pretty sure its one otherwise it would be a noble gas and highly stable as it complete its duplet

akashmanasi: answer my question

akashmanasi: no

srush1: ya, the question says molecule

srush1: hydrogen atom. has one electron

10562014: sorry i didn't read the question properly hydrogen molecule has 2 electrons

10562014: sorry again

srush1: hmm..

srush1: it's ok

Answered by 10562014

because it has got just one electron and one proton and no neutrons are present whereas helium has 2 electrons 2 protons and 2 neutrons each therefore size of the nucleus is greater than that of hydrogen so is the weight.

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