Question

The high density of the element (blank) makes it useful for blocking radiation, so it is used to make aprons to protect patients during dental X-rays. The element (blank) is strong, lightweight, bendable, and resistant to corrosion, so it is used to make automobile parts, airplanes, bicycles, and pots and pans.

Answer 1

The high density of the element **lead** makes it useful for blocking radiation, so it is used to make aprons to protect patients during dental X-rays. The element **aluminum** is strong, lightweight, bendable, and resistant to corrosion, so it is used to make automobile parts, airplanes, bicycles, and pots and pans.