Atomic Calculations Worksheet
Name:		Date:	
Use the Periodic Table of Elements to complete the following.
1. Determine the number of protons, neutrons and electrons for the following elements.
Elements
Number of
Protons
Number of
Neutrons
Number of
Electrons
Hydrogen (H)



Lithium (Li)



Boron (B)



Oxygen (0)



2. Which element has a greater number of protons - Potassium (K) or Selenium (Se)?
3. Which element has a smaller number of electrons - Copper (Cu) or Silver (Ag)?
4. Which element has a greater number of neutrons - Magnesium (Mg) or Tin (Sn)?
Environmental Protection RadTown Radioactive Atom Activity Set	EPA 402-B-19-017
* * Agency	https://www.EPA.gov/RadTown/Activitv-2-Atomic-Math-and-Shorthand

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