Question

Atom has a mass no. of 238 and atomic no. 92 and atom B has mass no. 235 and atomic no. 92.

a) How many protons, atom A and B have?
b) How many neutrons, atom A and B have?
c) Are atoms A and B isotopes of the same element? How?​

Answer 1

Answer:

a) protons in A= 92

protons in B= 92

b) neutrons in A= 238-92= 146

neutrons in B= 235-92= 143

c) yes because isotops having same atomic no. but different atomic mass

I hope your doubt will be clear

Answer 2

Answer:

a) Protons of atom A&B are both 92

b) neutrons of atom A is 146 & for atom B 143

c)they are isotopes of same element as they have same atomic number.