Question

what do you mean by atomic number and atomic mass and also represent the element

Answer 1

atomic number mean number of proton
atomic mass mean proton +neutron

Answer 2

atomic number it is given for each atom as a number
means
according to chemistry the definition like this
" the number of protons are the number of electrons present in an atom of an represented by Z"
and
atomic mass is " the total number of protons and neutrons present in the nucleus of an atom this is also called as mass number represented by small a"
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thank u