How many elements are present in Na2s203
3
How many total atoms are present in the compound Mg(OH)2?
5
How many total atoms are present in the compound 2Ca(OH)2?
10
A group of two or more atoms that are bonded together
molecule
Which molecule do scientists believe came first?
hydrogen
True or false: The outer planets are made up of lighter molecules and the inner planets are made of heavier ones
True
Atoms are the __________ part of a chemical element.
Smallest
Atoms are found on the __________ __________
Periodic Table
Combining atoms creates __________
Molecules
