Questions
An element with Z = 102 belongs to ……period of modern periodic table
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a
4
b
5
c
6
d
7
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Correct option is D
Hints to predict the position of element in the Modern periodic table :1)Elements from Z = 58-71……Lanthanoids…..4f series….6th period……3rd(IIIB) group;2)Elements from Z = 90-103… Actinoids….. 5f series….7th period……3rd(IIIB) group;Th(Z=90), Pa(Z=91), U(Z=92), Np(Z=93), Pu(Z=94), Am(Z=95), Cm(Z=96) ;Bk(Z=97), Cf(Z=98), Es(Z=99), Fm(Z=100), Md(Z=101), No(Z=102), Lr(Z=103) ;Similar Questions
An element with Z = 71 belongs to ……group……..period and ………block of modern periodic table
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