Math, asked by rithuljthomas4431, 1 year ago

How many elements are there in the 2nd and 5th period?

Answers

Answered by hukam0685

1

in 2nd period :8 elements( Li,Be,B,C,N,O,F,Ne)
in 5 th period:18 elements (T
Rb,Sr,Y,Zr,Nb,Mo,Tc,Ru,Rh,Pd,Ag,Cd,In,Sn,Sb,Te,I, Xe)

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