Define: i. Effective nuclear charge (Zeff) ii. Screening effect (or shielding effect)

D) Nitrogen has less ionization energy compared to oxygen because it has stable half filled configuration.

C) potential difference between A and B

1 electron = 1.6 × 10-19 C ∴ 1 C = \(\frac{1}{1.6\times10^{-19}}\) electrons = 0.625 × 1019 electrons ……. (Taking reciprocal from log table) = 6.25 × 1018 electrons Hence, 6.25 × 1018 electrons are required to accumulate a charge of...

Correct option is  A) qvB

B) ‘q’ is moving perpendicular to B

(A) Total charge present in the universe is constant.

B) ozone layer

The periodic trends are explained in the terms of two fundamental factors, namely, attraction of extranuclear electrons towards the nucleus and repulsion between electrons belonging to the same atom. These attractive...

i. In a multi-electron atom, the positively charged nucleus attracts the negatively charged electrons around it, and there is mutual repulsion between the negatively charged extranuclear electrons. ii. The repulsion by...

i. Across a period: As we move across a period, atomic number increases by one and thus, actual nuclear charge (Z) increases by +1 at a time. However, the valence shell remains...