Question

The nucleus of an atom has 5 protons and neutrons what would be the first one atomic number second on mass number third on the number of electrons forth on the number of Valence Electrons per atom of this element

Answer 1

Answer:

Hey mate here is your answer

Explanation:

1) The atomic number would be 5

2) It's mass will be 10 units( protons + neutrons)

3) 3 Valence electrons (2, 3; configuration)

4) valence electrons per atom of the element is 3.