Question

periodic table high school reference sheet
lithium is in group 1a, period 2 of the periodic table. which statement describes the charge of the ion it typically forms?
○ a. it forms a cation with +2 charge.
○ b. it forms a cation with a +1 charge.
○ c. it forms an anion with a +1 charge.
○ d. it forms an anion with a -1 charge.

Explanation:

Lithium is a metal in Group 1A. Metals typically lose electrons to form cations. Group 1A elements have 1 valence electron. When lithium loses this 1 valence electron, it forms a cation. The charge of the ion is determined by the number of electrons lost. Losing 1 electron gives a charge of +1. Anions are formed by gaining electrons (which non - metals typically do), so options C and D are incorrect. Group 1A elements do not lose 2 electrons (that would be Group 2A elements), so option A is incorrect.

Answer:

B. It forms a cation with a +1 charge.