An ion of which element has a larger radius than an atom of the same element?
(1) aluminum (3) magnesium
(2) chlorine (4) sodium

An ion of chlorine element has a larger radius than an atom of the same element. It has a negative charge.

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.