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Questions and Answers
What is the basic structural unit of matter?
What is the basic structural unit of matter?
- Nucleus
- Electron
- Atom (correct)
- Molecule
How many known elements are there currently?
How many known elements are there currently?
- 92
- 118 (correct)
- 104
- 86
What does the atomic number represent?
What does the atomic number represent?
- Number of electrons in the nucleus
- Number of protons in the nucleus (correct)
- Number of neutrons in the nucleus
- Atomic weight of the element
What is the atomic weight?
What is the atomic weight?
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What balances the positive charge of the nucleus in an atom?
What balances the positive charge of the nucleus in an atom?
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Which type of bond involves the exchange of valence electrons?
Which type of bond involves the exchange of valence electrons?
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In which electron shell are valence electrons located?
In which electron shell are valence electrons located?
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Which element readily gives up electrons to become a positive ion?
Which element readily gives up electrons to become a positive ion?
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What are the properties of an ionic bond?
What are the properties of an ionic bond?
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In covalent bonding, what happens to the outer electrons?
In covalent bonding, what happens to the outer electrons?
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