Question

Predict he block pwriod group of elements with atomic no 114

Answer 1

Given, Z = 114
Electron configuration : [Rn] 7s2 5f14 6d10 7p2
Its period no. is given by last filling shell i.e, 7
If last electron is filled in p sub-shell its group no. is given as 10 + no. of valence electrons i.e, 10+2(of 7s) + 2(of 7p) = 14 means group no. is 14
Its block no. is given by last filling sub shell i.e, p
Hence its period is 7, group no. is 14 & block is p.

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