Show:
Element Symbols
Atomic Number
Periodic Table
Families
Fact
100
Na
Sodium
100
1
Hydrogen
100
The line that goes from line 13 to line 16
Stair step
100
Row 3 to Row 12
Transition Metals
100
What is another name for the rows?
periods
200
He
Helium
200
14
Silicon
200
How many rows are there?
18
200
What family is next to the Noble Gases?
Halogens
200
True or False: Scientists are working on verifying element #120?
True
300
Zn
Zinc
300
27
Cobalt
300
How many elements are there?
118
300
Row 13 to Row 16
Mixed groups
300
What is the first element that was made artificially?
Technetium
400
Ni
Nickle
400
22
Titanium
400
What are the two bottom rows called?
Lanthanides series and the Actinides series
400
What is the family in the first column?
Alkali Metals
400
How many elements occur in nature?
90
500
Cu
Copper
500
17
Clorine
500
What is the group that is next to the alkali metals?
The alkaki earth metals.
500
He, Ne and Ar are a part of what family?
Noble 
500
Who came up with the periodic table? 
Dmitri Mendeleev