Question

match the vocabulary word to its definition.
smallest unit of a chemical element
a subatomic particle with a negative charge
a subatomic particle with no charge
center of an atom
a subatomic particle with a positive charge
a. neutron
b. nucleus
c. electron
d. atom
e. proton

Explanation:

An atom is the smallest unit of a chemical element. An electron is a subatomic particle with a negative charge. A neutron is a subatomic particle with no charge. The nucleus is the center of an atom. A proton is a subatomic particle with a positive charge.

Answer:

smallest unit of a chemical element - d. atom
a subatomic particle with a negative charge - c. electron
a subatomic particle with no charge - a. neutron
center of an atom - b. nucleus
a subatomic particle with a positive charge - e. proton