Chemistry, asked by Anonymous, 1 year ago

Class 10.....................
PLEASE ANSWER FAST................
What is the major characteristic of the first elements I have the periods? What is the general name of such elements??

Answers

Answered by BHADWI
0
Hydrogen and helium 2 elements of 1st period... In which helium is a gas
Answered by saindulakavath
0
in 1st period there are two elements namely hydrogen and helium

helium is inert gas and it is noble gas.

coming to hydrogen , it is common or normal gas.
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