Question

6. Write the complete atomic notation for an atom that has 11 protons, 13 neutrons, and 10electrons.

Answer 1

Sodium (Na)

The atomic number of this element (isotope of Na) is 11, but it has 10 electrons, therefore the atomic notation is

`_(24)^(11)Na`

Mass number = 11 + 13 = 24

Charge of the atom = 11 - 10 = +1

Atom number = number of protons = 11