Question

the size of the nucleus is expressed by a still smaller unit is called​

Answer 1

Answer:

nanometers

Explanation:

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Answer 2

Answer:

The unit of length convenient on the nuclear scale is a fermi : 1 f = 10

−15

m. Nuclear sizes obey roughly the following empirical relation : r=r

0

A

1/3

where, r is the radius of the nucleus, A its mass number, and r

o

is a constant equal to about 1.2 f. Show that the rule implies that nuclear mass density is nearly constant for different nuclei. Estimate the mass density of sodium nucleus.