Category 1
Category 2
Element Groups
Category 3
Category 4
100
separates the Metals from Non-Metals
What is a zigzag line
100
Groups or families
What vertical columns going down
100
Alkali metals
What are called Group IA
100
Atoms
What forms chemical bonds to become stable
100
Cations
What are positively charged ions
200
Metals
What is to the left of the zigzag line
200
Periods or series
What are horizontal rows going left to right
200
Alkaline earth
What are Group IIA
200
Electron cloud
What is does electron form that is negative
200
Anions
What are negatively charged ions
300
Non-Metals
What is to the right of the zigzag line
300
Valence electrons
What is found in the outer energy level
300
Halogens
What are Group VIIA
300
Ionization energy
What is energy required to remove an electron
300
Aufbau principle
What is when an electron occupies the lowest energy orbital that will receive it
400
Metals
What loses electrons and forms positive ions
400
How many valence electrons are on the element
What does the Roman numeral on the Group A elements mean
400
Noble gases or inert gases
What are Group VIIIA
400
Ionization energy
What increases from left to right in a period and from top to bottom in a group
400
Pauli Exclusion Principle
What is when no two electrons in the same atom can have the same set of 4 quantum numbers
500
Non-metals
What gain electrons and form negative ions
500
H2 N2 O2 F2 Cl2 Br2 and I2
What are seven diatomic molecules
500
Chemical properties
What is do elements in the same group have the same
500
Hydrogen
What element has the lowest ionization energy
500
Hund's Rule
What is when each of the orbitals at a particular level have one electron before any of them can have two electrons
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