Name:
Date:
Worksheet #2 – Calculating Protons, Electrons, and Neutrons
Element
Symbol
Atomic
Number
Atomic Mass
H
1
1
Protons
2
Li
Be
Neutrons
2
7
4
9
5
5
C
6
12
7
O
F
Electrons
14
16
8
9
Ne
20
11
23
12
12
Al
14
15
31
32
Cl
17
Ar
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Name:
Date:
Element Scavenger Hunt
Use your periodic table to answer the following questions:
1. How many protons does one atom of sulfur have?
2. What is the chemical symbol for Tin?
3. How many neutrons does one atom of oxygen have?
4. What is the symbol for gold?
5. In which period would you find Mercury?
6. What is iron’s atomic mass? (round to tenths )
7. Which element has 47 protons?
8. Name the element in period 4 that would make a good wire?
9. Is arsenic a metal, nonmetal, or a metalloid?
10. Is krypton a good or poor conductor of electricity? Why?
11. What is the nonmetal in period 3 with properties similar to Iodine?
12. How many neutrons does Technetium (Period 5) have?
13. What is a metal in period 5 with properties similar to Beryllium?
14. Which element’s atoms are the smallest?
15. What is the name of the element with the atomic number of 82?
16. What element is a metal with 104 electrons?
17. What is the atomic mass of Silver (round to nearest tenth)
18. What type element is Antimony?
19. In which group is Potassium?
20. How many neutrons does an atom of Thallium have?
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All rights reserved.
www.cpalms.org