Question

an isotope of mercury has 120 neutrons and 80 electron it contains _____ no of proton in its nucles its atomoc no ___ and mass no is ___​

Answer 1

An isotope of mercury has 120 neutrons and 80 electron it contains 80 no of proton in its nucles its atomic no. is 80 and mass no. is 200

Explanation:

•Number of protons = no. of electrons

•Number of electrons = no.of protons

•Atomic number = no.of protons or

(no. of electrons)

•Mass no. = (no.of protons + no of

neutrons)

•No of neutrons = (mass no.) -(atomic no.)