Structure Of The Atom Worksheet
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1
21. Fill in the following chart
isotope
electrons
protons
neutrons
Valence
Energy
electrons
levels
Oxygen—17
Potassium-
39
2. Calculate the average atomic mass of element X:
X—12 occurs 75% of the time
X—13 occurs 20% of the time
x—14 occurs 5% of the time
3. What part of the atom plays the greatest role in chemical properties and chemical
bonding?
4. Complete the chart
particle
charge
location
Relative mass
Electron
Neutron
proton
Use the following chart to answer the questions that follow:
atom
protons
electrons
neutrons
A
6
6
6
B
6
6
7
C
8
8
6
D
6
6
8
5. Which atoms are isotopes?
6. Which atom is a different atom from all of the others?
7. What is true about all elements in the same column?
8. What are 2 other names for a column?
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