Question

1. explain what electronegativity is measuring and describe the pattern. draw arrows onto the periodic table to show the pattern.

Explanation:

Step1: Define electronegativity

Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond.

Step2: Describe periodic - table pattern

Electronegativity generally increases across a period (left - to - right) as the number of protons in the nucleus increases, resulting in a stronger pull on electrons. It decreases down a group as the atomic radius increases and the outermost electrons are farther from the nucleus.

Step3: Drawing arrows

On the periodic table, draw arrows pointing from left to right across periods to show increasing electronegativity and from bottom to top within groups to show increasing electronegativity.

Answer:

Electronegativity measures an atom's electron - attracting ability in a bond. The pattern is that it increases across a period and decreases down a group. Draw arrows pointing left - to - right across periods and bottom - to - top within groups on the periodic table.