Acid is an substance that ionized in water to produce hydrogen ion
Atom is the smallest neutral particle in the element
Metals have high density. They are always solids at room temperature.
Metalloids have intermediate density. They are generally solids at room temperature.
Non-metals have low density. They can be solids, liquids or gases at room temperature.
Based on this, the <span>class of elements that includes all of the elements that are gases at room temperature is the non-metals</span>
The chemical bonds in CH4 are all single bonds. C only can bond 4 times because it needs 8 electrons in it's outer shell and only has four right now. The bonds represented are all single bonds because there are two electrons present on each side of the carbon. Two electrons, in this case, equals one bond.
