element with a valency of_ 2
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there are many elements with valency two but first one is HELIUM second is BERRYLIUM
Anonymous:
Hey actually helium is a Nobel gas so it has a vacancy of 0.
sorry
my mistake
sai484, yu could report my answer
No you should correct it .
option of edit answer is not there
have you edited it once .
no
iif you have edited your answer you can't do it again.
So you should check again on the upper right hand side part of your answer.
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HEY FRIEND
BE,MG,CA,SR,BA,RA are the atoms of valence 2.
BE,MG,CA,SR,BA,RA are the atoms of valence 2.
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