Chemistry, asked by snpspawankumar, 1 year ago

define mass numbr and atomic number. how are these represented around the symbol of an element? The mass number and atomic number of an isotope are Uranium are 235 and 92 respectively. calculate the no. of protons and neutrons

Answers

Answered by Vidushii11
4
mass number--the sum of the no. of protons and no. of neutrons is known as mass number.it is written above the symbol as He⁴..

atomic number is defined as the no. of electrons OR no. of protons present in an atom.. it is written at the base of the symbol on the left side ...
mass no.=235
atomic no. =92
no. of protons =92
no. of neutrons=235-92=. 143
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