Question

Considering an atom with 48 protons and 64 neutrons:   

A. name the element   

B. What is the atomic number

C. what is the mass number? 

D. How many electrons in the atom?

E. Which, if any of A, B, C, or D change if the atom has 65 electrons?

Answer 1

A)

Z = 48, unique for an atom

Cadmium has Z = 48

B)

the atomic number is equal to the number of PROTONS, therefore P = Z = 48

c)

mass number = neutrons + protons = 48+64 = 112

D)

electrons = protons (if it is not an ion)

therefore

electrons = 48

e)

if th eatom changes with electrons, the only numebr that will be affected is D