Group 1 Family
Group 2 Family
Group 3-12 Family
Group 17 Family
Group 18 Family
Most abundant element
Group with 2 Valence electrons
Most reactive non-metal
Element with largest atomic radius
Element with highest Ionization Energy
Person who arranged elements by increase in atomic number
Left blanks in Periodic Table
Family Group with all 3 main states of matter
Halogens: Fluorine & Chlorine (Gases); Bromine (Liquid); Iodine (Solid)
Least reactive Alkaline-Earth metal
Trend for metal reactivity down a group
Increases; as valence electrons get further away from the nucleus, Ionization energy decreases
Trend for Ionization energy across a period
Increases; as nuclear charge increases and electrons get pulled in closer, Ionization energy increases
Trend for Atomic radius down a group
Increases; increase in energy levels
Trend for Reactivity for nonmetals down a group
Decreases; as valence electrons get further away, ability to acquire electrons decreases.
Trend for Atomic Radius across a period
Decreases; as nuclear charge increases, electrons get pulled in closer to nucleus.
Trend for Ionization down a group
Decreases; as radius increases, it becomes easier to remove valence electrons.
Elements will be arranged by an increase in atomic number based on their similar physical and chemical properties.
Strontium's number of valence electrons