An element have atomic number 35 and Mass number 7 how can I calculate number of proton electron neuron

An element have atomic number 35 and Mass number 7 how can I calculate

1.	An element have atomic number 35 and Mass number 7 how can I calculate number of proton electron neuron
Answer» ELECTRONS and protons are same as atomic NUMBER 35 and 35.number of neutrons are atomic number- mass number 35-7= 28 neutrons