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 80 and mass no is 200.

Explanation:

Given :

no . neutrons = 120

no. of electrons = 80

no of protons = 80 ( no. protons equal to

no.of electrons in an atom)

atomic no.= 80 (equal to no . of protons in the nucleus or no.of electrons in an electrically neutral atom)

mass no. = no. of protons + no.of neutron

= 80 + 120

= 200

Answer 2

Answer:

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