Question

from the periodic table how will you find out th e atomic number and mass number of an element​

Answer 1

Explanation:

Hi

The atomic no. is always denoted by the letter Z

we know that atomic no. is always equal to no. of protons present in the nucleus. It is also equal to no. of electrons in an normal atom (neutral).

we can find mass no. by adding protons and neutrons.

Answer 2

Answer:

Together, the number of protons and the number of neutrons determine an elements mass number. Since an element isotopes have slightly different mass numbers, the atomic mass is calculated by obtaining the mean of the mass number for its isotopes.