Answer:
Strontium atom loses 2 electrons to become an ion.
Explanation:
Strontium (an Alkaline Earth metal) is the 38th element found in the Group 2 of the periodic table.
A Strontium atom has same number of electrons as its protons. It has a +2 electronegativity because it belongs to group 2 of the periodic table so it has the tendency to lose 2 electrons to form a positive ion.
Therefor, Strontium atom loses 2 electrons to become an ion with 2 electrons lesser than its atom.
