Name___________________________
Date___________________________
Period__________
Periodic Table Scavenger Hunt
Use the periodic table in your planner to answer the following questions.
1. Every element has a unique atomic number that is equal to
the number of protons in a single atom of that element.
1 (Atomic Number)
How many protons does sulfur have?
2. What is the atomic number of helium?
3. What element has an atomic number of 12?
4. Which of the following elements has the most protons?
Boron, Chlorine, or Potassium
5. What is the chemical symbol for Lithium?
6. What element has the chemical symbol of Hg?
H
(chemical symbol)
Hydrogen
(element name)
1.01
(atomic mass)
7. The atomic mass of an element is a combination of the number of protons and
neutrons. Because the same element does not always have the same number of
neutrons, the atomic mass is an average mass of the element as it occurs in nature.
What is the atomic mass of fluorine?
8. Which element has an atomic mass of 207.20?
9. Round off the atomic mass of silicon to the nearest whole number. Subtract
silicon’s atomic number from the rounded atomic mass for the number of
neutrons in a typical silicon atom. Show your work.
10. How many neutron are commonly found in a phosphorus atom?
11. A neutral (no charge) atom has the same number of electrons and protons. How
many electrons does a neutral atom of argon have?
12. Which element has neutral atoms containing 4 electrons?
Complete the following table:
Element Name
Element
Symbol
# of Protons
# of Neutrons
# of Electrons
Hydrogen
3
B
7
Fluorine
11
Mg
13
P
Chlorine
18
Draw models of the following atoms using the symbols P, N, and e- for protons,
neutrons, and electrons
Boron
Argon
Sodium
Phosphorus