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Atoms
Elements
Periodic Table
100
The smallest part of an element that can be identified as that element.
What is an atom
100
This element has an atomic number of 1
What is Hydrogen
100
This number tells the number of protons in the nucleus
What is atomic mass
200
This part of an atom that has a positive charge
What is a proton
200
This element has a symbol of O
What is Oxygen
200
These are two ways to help find an element on the periodic table
What are groups and periods
300
This part of an atom that has no charge
What is a neutron
300
This element has an atomic number of 79
What is Gold
300
What is the symbol for Sodium?
What is Na?
400
This part of an atom that has a negative charge
What is an electron
400
These two elements can be found in water
What is Hydrogen and Oxygen
400
What is the symbol for Helium?
What is He?