Tag: Rutherford’s nuclear model of atom (1911)

1) An atom is formed from the nucleus and the extra-nuclear part. A ) True B ) False Ans A ) True   2) Which of the following is the correct electronic configuration of Sodium (11)? A ) 2, 8 B ) 1, 8, 2 C ) 2, 8, 1 D ) 2, 1, 8 […]