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Questions and Answers
Which force holds the nucleus of an atom together?
Which force holds the nucleus of an atom together?
- The electromagnetic force
- The gravitational force
- The weak nuclear force
- The strong nuclear force (correct)
What is the defining characteristic of elements?
What is the defining characteristic of elements?
- The number of electrons
- The number of neutrons
- The number of protons (correct)
- The number of nucleons
What is the scientific definition of theory?
What is the scientific definition of theory?
- A guess
- A proven fact
- A hypothesis that has not been tested
- A well-tested set of ideas that explains many disparate observations (correct)
Who mathematically proved the existence of atoms and molecules in 1905?
Who mathematically proved the existence of atoms and molecules in 1905?
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Each element is determined by
Each element is determined by
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What is chemistry?
What is chemistry?
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What does chemistry encompass?
What does chemistry encompass?
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What is the role of neutrons in an atom?
What is the role of neutrons in an atom?
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Why are relative atomic masses never whole numbers?
Why are relative atomic masses never whole numbers?
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Where does the interesting chemical reactions occur in an atom?
Where does the interesting chemical reactions occur in an atom?
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