Answer: a) 35 , b) 45 , c) 35 , d) 35 , e) 80
Explanation:
a) - protons equal to atomic number of element , b) - subtract atomic number by number of protons to get neutrons (80 - 35 = 45) , c) - protons same as electrons unless its an ion , d) - atomic number is equal to protons , e) - protons plus neutrons equal mass number (35 + 45 = 80). :)
