Groups
Periods
Metals, Nonmetals, Metalloids
Vocab
Random
100
The Alkali Metals
Group IA
100
Has only 2 elements
Period 1
100
Located on the left of the periodic table.
metals
100
energy it takes to rip an electron away from it's outer shell.
ionization energy
100
How many valence electrons does Na have?
1
200
The Halogens
Group VIIA or 17
200
Total number of periods
7
200
non metal located on the left of the periodic table.
hydrogen
200
tendency of an atom to take in electrons from other atoms
electron affinity
200
Created the first periodic table
Dimitri Mendeleev
300
The Noble Gases
Group VIIIA or 18
300
Which period has 4 energy levels?
4
300
Boron is a ____________.
metalloid
300
size of the electron cloud from the nucleus to the outer valence shell
atomic radii or radius
300
First periodic table was arranged according to _____ _____
atomic weight
400
The alkaline Earth Metals
Group IIA or 2
400
Na is in which period?
3
400
Why is helium a located in group VIIIA?
It's outer shell is full
400
Have properties of metals and nonmetals
metalloids
400
the properties of the elements are largely dependent upon their periodic weight
periodic law
500
Groups in the middle of the table
Transition Metals
500

The atomic Radius increases as you move _______ to ______ across the periodic table.

top to bottom

500
The majority of the periodic table.
metals
500
tend to gain electrons and are poor conductors
nonmetals
500
the properties of the elements are a periodic function of their atomic numbers
modern periodic law
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