Though the word atom originally denoted a particle that cannot be cut into smaller particles, in modern scientific usage the atom is composed of various subatomic particles.

6 days ago · An atom is the smallest unit of an element that retains its chemical properties. It is made of protons, neutrons, and electrons. (Image: M. Magnaye) Atoms are the building blocks …

Dec 25, 2025 · An atom is the smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic …

Nov 19, 2023 · An atom is the basic building block of matter, consisting of protons, neutrons, and electrons. An atom is the smallest unit of matter that forms a chemical element and cannot be …

Jan 24, 2024 · Most atoms have three different subatomic particles inside them: protons, neutrons, and electrons.

3 days ago · An atom is the smallest particle into which an element can be divided without losing its chemical identity. Atoms consist of a heavy central nucleus surrounded by a cloud of …

Atoms are the building blocks of all matter. What is an atom? An atom is the smallest part of an element that can still be recognised as that element. Every element on the periodic table is …

Anything that has a mass—in other words, anything that occupies space—is composed of atoms. While its name originally referred to a particle that couldn't be divided any more—the smallest …

Feb 29, 2024 · What is an atom, who discovered it, & what are they made of? Learn facts, meanings, structure, & parts with examples & pictures or atoms.

An atom is the smallest unit of matter that retains all of the chemical properties of an element. Atoms combine to form molecules, which then interact to form solids, gases, or liquids.