Question

question 3 (1 point) titanium has 22 protons and lithium has 3 protons. which is larger in size? a titanium b lithium c they are the same size

Explanation:

Atomic size generally decreases across a period (from left to right) and increases down a group in the periodic table. Lithium (Li) is in period 2 and group 1. Titanium (Ti) is in period 4 and group 4. As we move down the group, the number of electron shells increases. Lithium has fewer electron shells (2) compared to Titanium (4). The more electron shells an atom has, the larger its atomic size (due to increased distance from the nucleus to the outermost electrons). So Lithium is larger in size.

Answer:

b. Lithium