Question

What will be the serial no. of group and period of an element having atomic number 8 ? (A) 6, 2 (B) 16, 2 (C) 6, 8 (D) 16, 4

Answer 1

ANSWER:-

Z=8

ELECTRONIC CONFIGURATION:-

$1s {}^{2} 2s {}^{2} 2p {}^{2}$

✏️ period=2

✏️ group=16

OPTION:-(B)