Periodic Table Vocabulary

electrons in the outermost shell

• electrons

• valence electrons

• protons

• neutrons

number of protons and neutrons

• atomic number

• atomic mass

• group

• isotope

this is the same amount as protons and electrons

• atomic mass

• isotope

• valence electrons

• atomic number

atom with different number of neutrons than regular atoms of its kind

• proton

• atomic number

• isotope

• atomic mass

smallest particle of an element

• electron

• atom

• proton

• neutron

a pure substance made of only one kind of atom

• element

• proton

• isotope

• valence electrons

subatomic particle that has no charge

• electron

• proton

• neutron

• isotope

subatomic particle that has a positive charge

• electron

• proton

• neutron

• isotope

subatomic particle that has a negative charge

• electron

• proton

• neutron

• isotope

Tags

NGSS.MS-PS2-3

model of the atom in which electrons move rapidly around the nucleus

• periodic table

• family

• group

• Bohr Model