These characteristics are possessed by molecular solids. Examples of molecular solids are hydrocarbons. The atoms are bonded by relatively weak intermolecular forces like dipole forces. Hence, they easily melt. When dissolved in water, they don't dissociate and form ions unlike ionic solids. Therefore, they don't conduct electricity whether in solid or liquid form.
Answer:
C. 21%oxygen
Explanation:
Dry air contains 78.09% nitrogen, 20.95%oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.
The periodic table is grouped by the properties of each element. They are also arranged in the order of their atomic mass. Different rows of elements are called periods. If elements lie in the same column, they are in the same group. It is helpful to us today because it helps us gain new information on the properties and the world around us. We would not have a true understanding of Chemistry if it were not for the period table.
