Which statement applies to electronegativity? a.) electronegativity increases across a period. b.) all atoms with the same number of electron shells have equal electronegativities. c.) electronegativity is the amount of energy required to remove an electron from a gaseous atom. d.) electronegativity increases down a group.

The correct answer is Option A.

Explanation:

Electronegativity is defined as the tendency of an atom to attract the shared pair of electrons towards itself whenever a bond is formed.

This property increases as we move from left to right across a period because the number of charge on the nucleus gets increased and electrons are attracted more towards the nucleus.

This property decreases as we move from top to bottom in a group because the electrons get add up in the new shells which make them further away from the nucleus.

Thus, the correct answer is Option A.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

the awnser is group 12