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Questions and Answers
What is the atomic number of an element based on?
What is the atomic number of an element based on?
- The number of electrons in its nucleus
- The number of electrons in its electron shells
- The number of protons in its nucleus (correct)
- The number of neutrons in its nucleus
Which type of mixture has a uniform composition?
Which type of mixture has a uniform composition?
- Homogeneous mixture (correct)
- Compound
- Heterogeneous mixture
- Element
What are the properties of metals?
What are the properties of metals?
- High reactivity, low melting point, and opacity
- Conductivity, malleability, and ductility (correct)
- Brittleness, low density, and insulating properties
- Non-conductivity, high density, and brittleness
What are compounds made of?
What are compounds made of?
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What does the nucleus of an atom contain?
What does the nucleus of an atom contain?
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