Question

The ratio of radius of first orbit in hydrogen to the radius of first orbit in deuterium will be

Answer 1

Bohr's Radius is given by the Formula,

r = 52.9 Z²/n pm.

Now, For Hydrogen, n = 1 and Z = 1.

r₁ = 52.9 × 1²/1 = 52.9 pm.

For Deuterium, n = 1 and Z = 1(Since, Deuterium is the Isotope of Hydrogen, thus It has same atomic number as Hydrogen).

r₂ = 52.9 × 1²/1

= 52.9 pm.

∴ r₁/r₂ = 52.9/52.9 = 1/1

= 1:1

Hence, the ratio is 1 : 1.

Hope it helps.

Answer 2

Answer: ratio= 1: 16

Explanation:

Hope it helps you!

If it is right or wrong do let me know!

If it is right mark it as brainliest please! :-)