I have 19 protons
Potassium
Why are groups also often called families?
Elements in the same column tend to have similar properties
What do all atoms want? (think about their shells)
Full outer shells. (8 valence electrons)
Group
Helium is a...
Noble Gas
I have an atomic mass of 12
Carbon
I am another name for a column on the periodic table
Groups or families
Noble gases do not react because...
They already have full outer shells
Going side to side on a periodic table is a
Row or period
Chlorine is a...
Halogen
I am in group 2 Period 3
Magnesium
I am 2 properties of alkali metals
very reactive, they conduct electricity, they are malleable, they are softer, they have 1 valence electron
Alkali metals are very reactive because
They only need to lose 1 electron in order to have a full outer shell
Everything to the left of the staircase on the periodic table is a
Magnesium is a...
Alkali earth metal
I am the smallest atom that has 8 electrons in my outer shell
Ne
I am 2 properties of halogens
Halogens are super reactive because
They only need to gain one electron in order to have a full outer shell
7
Gold is a...
Transition metal
I have 118 Neutrons
Gold
I am the largest family in the periodic table
Transition metals
Transition metals are extremely conductive because...
They have unfilled inner rings
F, Br, I, At
Boron is a...
Metalloid