Atomic Mass Number Worksheet
Explore the basics of atomic mass and atomic number for Grade 6 science students.
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Atomic Mass Number Worksheet
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Read each question carefully and answer to the best of your ability. This worksheet will test your knowledge of atomic number and atomic mass.
1. What does the atomic number of an atom represent?
The number of neutrons
The number of protons
The total number of protons and neutrons
The number of electrons
2. The atomic mass number is primarily determined by the sum of which two subatomic particles?
Protons and electrons
Electrons and neutrons
Protons and neutrons
Only protons
1. The atomic number is always equal to the number of in an atom.
2. To find the number of neutrons, you subtract the atomic number from the .
3. The atomic mass unit (amu) is used to measure the mass of and .
1. An atom has 6 protons and 6 neutrons. What is its atomic number and atomic mass number?
2. If an atom has an atomic number of 8 and an atomic mass number of 16, how many neutrons does it have?
1. All atoms of the same element have the same atomic mass number.
True
False
2. Electrons contribute significantly to the atomic mass number.
True
False
Label the parts of the atom shown in the diagram below:
1.
2.
3.