The radius of germanium (Ge) nuclide is measured to be twice

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The radius of germanium (Ge) nuclide is measured to be twice the radius of ⁹₄Be . The number of nucleons in Ge are

1. 74
2. 75
3. 72
4. 73

Correct Option: C

We use the formula,
R = R₀ A^1/3
This represents relation between atomic mass and radius of the nucleus.
For berillium, R₁ = R₀ (9)^1/3
For germanium, R₂ = R₀ A^1/3

	R₁	=	(9)^1/3
	R₂		(A)^1/3

⇒	1	=	(9)^1/3
	2		(A)^1/3

⇒	1	=	9	⇒ A = 8 × 9 = 72 .
	8		A