21. The ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to Bohr's model is (a) \( 2: 1 \) [Pb. PMT 2002] (c) \( 1:-1 \) (b) \( 1: 1 \) (d) \( 1: 2 \)

(A) Network, (B) Hierarchical, (C) Relational

(a) Given m = 2 kg h = 10 m Potential energy at before falling from the coconut tree. u = mgh u = 2 x 10 x 10 u = 200 joule Kinetic energy will...

i. The stationary states for electrons are numbered n = 1, 2, 3……. These integers are known as principal quantum numbers. ii. The radii of the stationary states are rn =...

Correct option is (A) y = 8x \(\because\) Quantities of hydrogen and oxygen are x and y and their quantity are in ratio 1 : 8. \(\therefore\) x : y = 1 : 8 \(\Rightarrow\) \(\frac xy=\frac18\) \(\Rightarrow\) y =...

Correct option is A) shells

D) Heavier atoms

Correct option is: (D) electronic configuration According to quantum mechanical model of the atom, the properties of elements can be corelated to their electronic configuration