Why are the noble gases such as helium (He) and neon (Ne) grouped together in the periodic table?
A- They are nonreactive gases.
B-They are highly reactive metallic solids.
C-They are dangerous gases when combined with water.
D-They are liquid at room temperature and have high boiling points.

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.