- Balloon gas - Gaseous element, symbol He - Inert gas - Light gas - Noble gas - A gaseous element found in the atmospheres of the sun and
earth and in some rare minerals.
- Abundant element - Atmospheric element essential for respiration - Chemical element - Colourless gas - Foxy gentlemen use life gas - Gas vital to life - Its atomic number is 8
- Element F - Gaseous element - A non-metallic, gaseous element, strongly acid or
negative, or associated with chlorine, bromine, and iodine, in the
halogen group of which it is the first member. It always occurs
combined, is very active chemically, and possesses such an avidity for
most elements, and silicon especially, that it can neither be prepared
nor kept in glass vessels. If set free it immediately attacks the
containing material, so that it was not isolated until 1886. It is a
pungent, corrosive, colorless gas. Symbol F. Atomic weight 19.
- Colourless gas - First periodic table element - Information on old spa resort gas - Spa resort information on light gas - Type of nuclear bomb - A gaseous element, colorless, tasteless, and odorless,
the lightest known substance, being fourteen and a half times lighter
than air (hence its use in filling balloons), and over eleven thousand
times lighter than water. It is very abundant, being an ingredient of
water and of many other substances, especially those of animal or
vegetable origin. It may by produced in many ways, but is chiefly
obtained by the action of acids (as sulphuric) on metals, as zinc,
iron, etc. It is very inflammable, and is an ingredient of coal gas and
water gas. It is standard of chemical equivalents or combining weights,
and also of valence, being the typical monad. Symbol H. Atomic weight
1.