Question

These statements describe three different reactions.

1 - An atom shares electrons with another atom.
2 - The nucleus of an atom is split apart.
3 - An atom gains an electron from another atom.

Which reaction(s) most likely release the greatest amount of energy?

Answer 1

The correct option is 2 - The nucleus of an atom is divided.

Step-by-step explanation:

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The process by which the nucleus of an atom is divided is called nuclear fission.

Nuclear fission occurs when a heavy nucleus divides. It releases a lot of energy.

Option one is the description of a covalent union.

Option three describes an ionic union.

The correct option is 2 - The nucleus of an atom is divided.

Answer 2

Answer: The correct answer is Option 2.

Step-by-step explanation:

From the given options:

Option 1: This happens whenever there is a formation of covalent bond. This is a type of chemical reaction.

Option 2: This reaction is a type of nuclear reaction because here rearrangement of nucleus is taking place.

Option 3: This reaction is a type of reduction reaction because in reduction reaction one atom gains electrons from another atom.

Energy released during nuclear reactions is more than chemical reactions because huge amounts of energy is released at one time. The nuclei in a nuclear reaction undergoes a chain reaction which causes neutrons to move at a very fast rate and thus, it releases high amounts of energy.

Hence, the correct answer is Option 2.