Atoms and the Periodic Table Flashcard Practice

Front

What is the unit used to measure an atom's mass?

Back

amu (atomic mass unit)

Front

What happens during a physical change?

Back

A substance may look or feel different, but does not lose its identity.

Front

Which of the following is a negatively charged subatomic particle?

Back

Electron

Front

What is a neutron?

Back

A small particle in the nucleus of the atom, with no electrical charge.

Front

What is all matter made of?

Back

Atoms.

Front

What is an atom?

Back

The basic unit of a chemical element.

Front

What are protons?

Back

Positively charged subatomic particles found in the nucleus of an atom.

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by their atomic number.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.