Periodic Table Answers

The substance in the image is called dry ice. It is a solid that, without melting into a liquid first, turns directly into a gas at room temperature. Where are the elements that make up dry ice found on the periodic table?

Which properties are characteristics of nonmetals? Check all that apply.malleablebrittlesolid at room temperaturelow densityelectrical insulatorthermal conductor

Nonmetallic elements form ions by valence electrons to complete their outer shell.

The valence electrons an element has in its outer shell, the easier it is to complete.

The electron shells an element has, the easier it is to fill its outermost shell.

Reactivity in nonmetals as you go from left to right in a group, and as you go from top to bottom.

Reactivity in nonmetals as you go from left to right in a group, and as you go from top to bottom.