Question

What must differ between the atom of two different elements?

Responses

protons in the atom
protons in the atom

protons and neutrons in the nucleus
protons and neutrons in the nucleus

electrons in the atom
electrons in the atom

neutrons in the atom

Answers

Answered by GPT-4o mini
The correct response is:

**protons in the atom**

The primary distinguishing feature of atoms from different elements is the number of protons in their nuclei. Each element has a unique number of protons, which defines its atomic number and identity. While the number of neutrons and electrons can vary among isotopes and ions of the same element, the number of protons always differs between different elements.

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