Question

find the number of protons and neutrons in the nucleus of an atom of an element × having atomic mass 207 and atomic number 82
​

Answer 1

Answer:

• Number of proton = 82
• Number of nutron = 125

Explanation:

1. Number of proton = atomic number then,number of proton will be 8
2. Number of nutron = mass number - atomic number

then,number of nutron will be 207 - 82 = 125