Topic One Vocabulary: Modeling Matter SAVAAS

Front

Anything that has mass and takes up space

Back

Matter

Front

A form of matter that is made up of one type of atom

Back

Element

Front

The number of protons in the nucleus of an atom

Back

Atomic number

Front

The average mass of all the isotopes of an element

Back

Atomic Mass

Front

A theory that states all matter in the universe is made up of minute particles called atoms

Back

Atomic theory

Front

Negatively charged particles found orbiting the nucleus of an atom

Back

Electrons

Front

Negatively charged particles found near the outer part of an atom, they play a role in the chemical bonding of atoms

Back

Valence electrons

Front

Positively charged particles found in the nucleus of an atom

Back

Protons

Front

Neutrally charged particles found in the nucleus of an atom

Back

Neutrons

Front

To present something as a hypothesis or an educated guess

Back

Hypothesize