Matter vocab2

Front

What is a notation used by scientists to show the number and type of atoms present in a molecule?

Back

Chemical formula

Front

What is the smallest unit of ordinary matter that forms a chemical element?

Back

Atom

Front

What is the positively charged subatomic particle found in the nucleus of an atom?

Back

Proton

Front

What do you call an atom with the same number of protons and a different number of neutrons?

Back

Isotope

Front

What is the number of protons in an atom of an element called?

Back

Atomic number

Front

What is the term for the average mass of an element's isotopes, weighted by their natural abundance?

Back

Atomic mass

Front

What is the negatively charged subatomic particle that orbits the nucleus of an atom?

Back

Electron

Front

What is the term for the outermost electrons of an atom that are involved in chemical bonding?

Back

Valence electrons

Front

What is a substance made of two or more different types of atoms bonded together?

Back

Compound

Front

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

Back

Element