Question

Find the number of proton and neutrons in the nucleus of an atom of an elementX which is represented as 207X82

Answer 1

Answer:

atomic no. is 82

atomic mass is 207

the no.of proton =82=no.of electron

the no. of nwutron is 207-82=125 neutron

hope so helpful.

Answer 2

Given: The given element is $X^{207}_{82}$.

To find: We have to find the number of protons and the number of neutrons.

Solution:

The mass number of any element is the sum of the number of protons and the number of neutrons.

The atomic number of any element is equal to the number of protons.

Here the mass number is 207 and the atomic number is 82.

Thus, the number of the proton is 82.

Mass number=207

Number of neutron=207-82

=125

Thus, the number of neutrons is 125.