Chemistry, asked by Lalit1111111, 1 year ago

Give the number of elements in 2nd and 5th period in Modern Periodic Table.

Answers

Answered by kir2
3
2nd period contains 8 elements..
5th period contains 18 elements...
Answered by Anonymous
2
2nd period =Beryleium(Be) , Magnesium (Mg) , Calcium (Ca) , Strontium (Sr) , Barium (Ba) , Radium (Ra)
5th period =Nitrogen (N),Phosphorus (P),Arsenic (As), Antinomy (Sb) ,Bismuth (Bi) , Ununhexium (Uup)
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