The number of proton, electron and neutron is 119, 119 and 183 respectively.
We were given an element to have A= 302 and Z= 1119. The mass number of an element is always more than the atomic number which means A is the
mass number which is 302 and atomic number is A which is 119.
Mass number (A) = 302
Atomic number (Z) = 119
Atomic number is the amount of proton in an element.
Proton = atomic number = 119
Since it's a neutral atom , then proton= electron
Electron = proton = 119
Mass number = proton + Neutron
Neutron = Mass number — proton
Neutron = 302 — 119
Neutron = 183
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