Revision as of 16:08, 20 April 2024 by Fire(talk | contribs)(Created page with "{{#switch:{{{symbol|{{{1|}}}}}} <!--- Period 1 ---> | H = | He=A clear tube with a red light emanating from it <!--- Period 2 ---> | Li= | Be= | B = | C = | N =A transparent liquid, with visible evaporation, being poured | O =Gas discharge tube filled with oxygen O<sub>2</sub>. | F =Small sample of pale yellow liquid fluorine condensed in liquid nitrogen | Ne= <!--- Period 3 ---> | Na= | Mg= | Al= | Si= | P = | S = | Cl=A glass container filled with chlorine gas | Ar=Via...")
