The atomic number of an atom is equal to the number of.. a) electrons plus protons. b) neutrons. c) neutrons plus protons. d) nuclei. e) protons.

The  answer is (E). protons.

The atomic number of an atom is equal to the number of protons in the nucleus.

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plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.