In such shorthand structures, each point where lines meet represents a carbon atom and most H atoms are not shown. All carbon atoms will have the octet rule satisfied. Indicate which carbon atoms use sp2 hybrid orbitals.

Indicate which carbon atoms use sp3 hybrid orbitals.

Are all carbon atoms in the same plane, as implied by the structure? Explain your reasoning.

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

"the periodic table is arranged in order of atomic number."

the right answer is c i just did the question.