Atoms, Elements, Compounds, Mixtures

Front

What is a substance made up of 2 or more elements that are chemically combined?

Back

Compound (e.g., table salt NaCl)

Front

What is the subatomic particle with no charge found inside the nucleus?

Back

Neutron

Front

What is the total mass of protons and neutrons in an atom, measured in Atomic Mass Units (AMU)?

Back

Atomic mass

Front

What do we call two or more substances that have been physically combined?

Back

Mixture (e.g., salt water is H2O mixed with NaCl)

Front

What is the subatomic particle with a negative charge found outside the nucleus in the electron cloud?

Back

Electron

Front

What is the smallest unit of an element that retains the properties of that element?

Back

Atom

Front

What is a pure substance made up of only one type of atom?

Back

Element (e.g., oxygen O2)

Front

What is the term for the number of protons in the nucleus of an atom?

Back

Atomic number

Front

What is a mixture that has a uniform composition throughout?

Back

Homogeneous mixture (e.g., salt water)

Front

What is a mixture that does not have a uniform composition?

Back

Heterogeneous mixture (e.g., salad)