Use the periodic table to answer the question.

Question

Two carbon atoms (Group 14) bond with two hydrogen atoms (Group 1) to form acetylene (C2H2
). How would each carbon atom in acetylene bond?

(1 point)
Responses

Each carbon atom would share one pair of electrons with hydrogen and three pairs with the other carbon atom.
Each carbon atom would share one pair of electrons with hydrogen and three pairs with the other carbon atom.

Each carbon atom would share one pair of electrons with the other carbon atom and three pairs with each hydrogen atom.
Each carbon atom would share one pair of electrons with the other carbon atom and three pairs with each hydrogen atom.

Each carbon atom would share one pair of electrons with hydrogen and one pair with the other carbon atom.
Each carbon atom would share one pair of electrons with hydrogen and one pair with the other carbon atom.

Each carbon atom would share one pair of electrons with the other carbon atom and two pairs with each hydrogen atom.
Each carbon atom would share one pair of electrons with the other carbon atom and two pairs with each hydrogen atom.
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Answer 1

In acetylene (C₂H₂), each carbon atom forms a triple bond with the other carbon atom and a single bond with a hydrogen atom. This means:

• Each carbon atom shares one pair of electrons with a hydrogen atom (single bond).
• Each carbon atom shares three pairs of electrons with the other carbon atom (triple bond).

Thus, the correct response is:

Each carbon atom would share one pair of electrons with hydrogen and three pairs with the other carbon atom.