Unit 3 Assignment Matter, Atomic Mass and Atomic Number -...

Unit 3 Assignment: Matter, Atomic Mass and Atomic Number
Question Number 1 Points: 5.00/5.00
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The center of an atom is called the _______
Question Number 2 Points: 5.00/5.00
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The combined number of the protons and the neutrons in an atom is the ________.
Question Number 3 Points: 5.00/5.00
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An ice cube is an example of water in the __________ phase.
Question Number 4 Points: 5.00/5.00
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When we speak of an object’s mass, we are referring to _______.
Question Number 5 Points: 5.00/5.00
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The __________ is the basic unit of matter.
Question Number 6 Points: 7.00/7.00
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Read the following question carefully and relate your answer to the number of protons,
electrons, and neutrons in an atom. Please do not spell out the number.
If an atom has 16 protons in its nucleus, how many electrons must it have?
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