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Standard X
Chemistry
Anionic Radius
The radius of...
Question
The radius of germanium (Ge) nuclide is measured to be twice the radius of Be the number of nucleons in Ge are
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Solution
Nuclear radii
R
=
R
0
A
1
/
3
When
R
0
=
1
−
2
F
M
R
∝
A
1
/
3
R
B
e
R
a
e
=
(
9
)
1
/
3
A
1
/
3
⇒
R
B
e
2
R
B
e
=
(
9
)
1
/
3
A
1
/
3
[
∵
R
G
e
=
2
R
B
e
]
A
1
/
3
=
2
×
9
1
/
3
A
=
2
3
×
9
=
8
×
9
=
72
The number of nuclear in Ge is
72
.
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