Atomic Structure Vocabulary

the number of protons plus the number of neutrons contained in an atom’s nucleus

• atomic mass

• atomic number

• chemical symbol

• bohr model

a diagram that shows an atom’s nucleus surrounded by an electron cloud

• atomic mass

• atomic number

• chemical symbol

• Bohr model

What is the basic unit of matter

• atom

• nucleus

• Ion

• Matter

Tags

NGSS.MS-PS1-1

the number of protons in an atom is also called

• atom

• atomic number

• mass number

• Nucleus

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

• proton

• neutron

• electron

• nucleus

A subatomic particle that has no charge and that is found in the nucleus of an atom

• proton

• neutron

• electron

• nucleus

A subatomic particle that has a negative charge

• proton

• neutron

• electron

• nucleus

the center of an atom

• proton

• neutron

• nucleus

• electron

An atom or group of atoms that has a positive of negative charge.

• Atom

• nucleus

• Ion

• isotope

a region around the nucleus of an atom where electrons are likely to be found

• Atom

• ion

• nucleus

• electron cloud