Question

An ion from a given element has 82 protons and 80 electrons.what is the charge on the ion? what is the name of the element? what is the symbol for the ion?

Answer 1

Answer: The element is lead and the symbol of the ion is
`Pb^(2+)`

Step-by-step explanation:

An ion is formed when a neutral atom looses or gains electrons.

• When an atom looses electrons, it results in the formation of positive ion known as cation.
• When an atom gains electrons, it results in the formation of negative ion known as anion.

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

We are given:

Number of protons = 82

Number of electrons = 80

Charge = Number of protons - Number of electrons = 82 - 80 = +2

The element having 82 protons is Lead. So, the symbol of the ion is
`Pb^(2+)` ion

Hence, the element is lead and the symbol of the ion is
`Pb^(2+)`