The table compares some characteristics of two atoms. Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atoms. (5 points) O Atoms X and Atom Y are in the same family. O Atom X is in a column to the right of Atom Y on the periodic table.
O Atom X and Atom Y are in the same row on the periodic table.
O Atoms X and Atom Yare isotopes.​

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

a polar bond is formed when electrons are shared unevenly between atoms

what does the table look like