In the following table are given eight elements A, B, C, D, E, F, G and Hof the modernperiodic table with atomic numbers.
Period Group I Group II
2 A(3) E(4)
3 B(11) F(12)
4 C(19) G(20)
5 D(37) H(38)
i) What is the electronic configuration of F?
ii) What is the number of valence electrons in the atom of F?
iii) What is the number of shells in the atom of F?
iv) Write the size of the atoms of E, F, G, and H in the decreasing order.
v) State whether F is a metal or a non-metal.
vi) Out of three elements B, E and F, which one has the biggest atomic size?

1) 2, 8, 2
2) 2
3) 3
4) H, G, F, E 
5) Metal
6) B

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thank u paruu ;) :P
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u r welcome
 
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 1) K shell 2 e L shell 8 e- & M shell 2 e-
2)  2 e-
3) 3
4) H>G>F>E
5)metal
6) B
 
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