How is a strontium atom different from a strontium ion?

Answer 1

An isotope has extra or fewer neutrons in the nucleus than the average number for that element. This may or may not result in a radioactive isotope.

An ion has extra or fewer electrons orbiting the nucleus. This usually increases the chemical reactivity.

Answer 2

A strontium atom differs from a strontium ion in that the atom has a greater number of electrons Explanation: Strontium has 2 valence electrons in its outer shell. It is easier to lose these 2 electrons than it is to gain 6 more electrons. Losing 2 electrons will give the strontium ion a charge of +2. Ions are charged atoms. An neutral atom has no charge because it has the same number of protons and electrons. An ion can have more or less electrons than an atom of the same element does. A strontium atom would have 2 more electrons than a strontium ion.

Answer 3

A Strontium atom has same number of electrons as its protons. But a Strontium ion has 2 electrons less than its atom.