Groups of the Table
Elements
Periods
Vocabulary
Random
100
This is the most reactive group
Group 1 (1A)
100
This element has 12 protons
Magnesium
100
Periods are read this way (up and down OR side to side)
side to side (hint: period comes at the end of a sentence--and sentences are read side to side)
100
This is a positive subatomic particle
proton
100
What does the mnemonic APE mean
Atomic # = # of Protons = # of Electrons
200
This is the direction groups face (up and down OR side to side)
up and down
200
This element has an atomic mass of 12
Carbon
200
Periods tell us this
How many electron shells an element has
200
This is a NEGATIVE subatomic particle
electron
200
What does the mnemonic MAN help us remember?
Mass (rounded) - Atomic # = # of Neutrons
300
This is the group that DOES NOT react with other elements
Noble Gases, Group 18
300
This element has 4 electrons
Beryllium
300
This is the number of elements in period 3
8
300
This is a NEUTRAL subatomic particle
neutron
300
How many neutrons boron has
6
400
Groups tell us this these 3 things
Elements have similar properties, reactivity, AND SAME number of valence electrons
400
This element has 8 protons
Oxygen
400
This is the number of electron shells for all elements in period 4
4
400
This is another name for energy level
electron shell, electron cloud, electron orbital, e-cloud
400
How many valence electrons aluminum has
3
500
This is the group that has a full valence electron shell
Group 18 (8A)
500
This element has only 1 shell and 1 proton
Hydrogen
500
This element has the most mass of elements in the 2nd period
Neon
500
These are elctrons in the last, outer shell of an element
VALENCE electrons
500
Bohr model for carbon
