Unit 5- Electrons & Periodic Table Vocabulary

elements in group 17 on the periodic table

• noble gases
• halogens
• alkali earth metals
• alkali metals

a row on the periodic table

• group
• family
• period
• halogen

part of the atom with a positive charge

• cation
• proton
• electron
• nucleus

the mass of an atom as listed on the periodic table

• mass number
• atomic mass
• atomic number
• protons

elements that are found on the right side of the periodic table, good insulators, poor conductors of heat and electricity

• metals
• nonmetals
• metalloids
• transition metals

family of elements located in group 1 on the periodic table

• noble gases
• halogens
• alkali earth metals
• alkali metals

an atom that has no charge

• ion
• isotope
• neutral
• radioactive

chart that contains elements in order based on properties and similarities

• luster
• group
• family
• periodic table

smallest particle of an element that retains the properties of the element

• electron
• proton
• atom
• ion

elements located along the "stairs" on the periodic table

• metals
• nonmetals
• metalloids
• transition metals