Atom of an element is made up of 4 protons, 4 electrons and 5 neutrons i) identify the element ii) what is the atomic number and mass number?
Answers
Answered by
1
Answer:
Be
Explanation:
mass no.= p+n = 4+ 5=9
atomic no.= 4
the element is Beryllium.
Answered by
1
Answer:
A neutral atom will have the same number of electrons is protons. Since it have 4 protons, it must have an atomic number of 4 (That makes beryllium.) Since it has 4 protons and 5 neutrons it has a mass number of 9.
Similar questions