Question

Which of the following best describes an atom?

Answer 1

Answer:

a core of protons and neutrons surrounded by electrons.

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Answer 2

An atom is the tiniest particle of a chemical element that may exist.

Explanation:

• An atom is the tiniest unit of matter that retains all of the chemical properties of an element. Solids, gases, and liquids are formed when atoms combine to form molecules, which interact to produce solids, gases, and liquids.
• The three fundamental particles that make up an atom are protons, electrons, and neutrons. The nucleus (core) of the atom contains protons (positively charged) and neutrons (no charge).
• The electrons are housed in the atom's outermost sections, the electron shells (negatively charged). Atoms have different properties depending on how their basic components are organized and how many there are.