atom in a sentence
n.
📚 Grade Level: Grade 3, Grade 4, Grade 5, Grade 6, Grade 7, Grade 8
Definition
Atom: the smallest unit of an element, consisting of a nucleus surrounded by electrons, that defines the properties of matter.
Sample Sentences
- The atom is the basic unit of matter that defines chemical elements.
- Scientists have discovered that atoms are mostly empty space.
- In the center of an atom lies the nucleus, containing protons and neutrons.
- Atoms can bond together to form molecules through chemical reactions.
- The behavior of atoms is governed by the principles of quantum mechanics.
- Each element on the periodic table is defined by the number of protons in its atom.
- Recent advancements in technology allow us to visualize individual atoms.
- Radioactive atoms can emit radiation as they decay over time.
- Understanding atoms is crucial for fields like chemistry and physics.
- The concept of the atom has evolved significantly since its introduction by ancient philosophers.