From the table or densities found in this experiment iron has a density of 7.85 g/cm^3 and water has a density of 1.0 g/mL iron is denser than water and will sink when placed in water Explain how ships made iron stay afloat using density principles

neutrons are in the middle of the atom and the electrons, which are much smaller.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

elements make up everything, and they combine to make compounds.

the answer is c