In order of increasing mass, non-metallic atoms {non-metal atom} in first two periodic-table rows are hydrogen gas, helium non-reactive gas, boron solid, carbon solid, nitrogen gas, oxygen gas, fluorine gas, and neon inert gas. Heavier ones are silicon solid, sulfur solid, phosphorus solid, chlorine gas, argon inert gas, germanium solid, arsenic solid, selenium solid, antimony solid, bromine solid, krypton inert gas, iodine solid, and zenon inert gas. Non-metal solids are crystals with various properties.
Physical Sciences>Physics>Matter>Atom>Kinds
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Date Modified: 2022.0224