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Questions and Answers
What is the significance of the atomic number in an atom?
What is the significance of the atomic number in an atom?
- It indicates the position of the atom in the periodic table
- It defines the number of electrons in an atom
- It determines the chemical properties of the atom (correct)
- It determines the mass number
What are isotopes based on?
What are isotopes based on?
- Electron cloud distribution
- Mass number (correct)
- Valence electrons
- Atomic weight
How is the atomic weight calculated?
How is the atomic weight calculated?
- By multiplying the atomic mass by the number of electrons
- By adding the atomic number and the mass number
- By averaging the different atomic masses and isotopic proportions (correct)
- By summing the valence electrons and neutron count
Which subatomic particle has a neutral charge?
Which subatomic particle has a neutral charge?
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What is the function of the valence shell in an atom?
What is the function of the valence shell in an atom?
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What determines the reactivity of an atom?
What determines the reactivity of an atom?
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Which term describes a pure substance composed of atoms of one kind?
Which term describes a pure substance composed of atoms of one kind?
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