Question

2. Element with electronic configuration 1s? 252 2p 3s 3p 340 482 4p 4d1° 552 5p belongs to which of the following group
of the periodic table?
(a) IIA (2)
(b) III A (13)
(c) V A (15)
(d) VII A (17)
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Answer 1

Answer:

option c) 15 th group in periodic table