Week 9: Atomic Structure and Nuclear Science Quiz

What is an atom?

• The smallest part of a cell

• The smallest unit of an element

• A type of molecule

• A proton and electron combined

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Which particles are found in the nucleus of an atom?

• Electrons only

• Protons and neutrons

• Protons and electrons

• Neutrons and electrons

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What does the atomic number of an element represent?

• Number of neutrons

• Number of electrons

• Number of protons

• Number of protons and neutrons combined

Which of the following is true about electrons?

• They are found inside the nucleus

• They have a positive charge

• They orbit around the nucleus

• They have no charge

In the periodic table, elements are arranged by their:

• Mass

• Atomic number

• Color

• Size

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Which category contains the most elements?

• Metals

• Metalloids

• Nonmetals

• Noble gases

What is a property common to all metals?

• They are brittle

• They conduct electricity

• They are poor conductors of heat

• They are gases at room temperature

What is a metalloid?

• An element that is shiny and malleable

• An element that has properties of both metals and nonmetals

• An element that is a gas at room temperature

• An element that only conducts heat

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Which of the following is an example of a metalloid?

• Silicon

• Oxygen

• Iron

• Copper

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Which of the following is a nonmetal?

• Copper

• Sulfur

• Aluminum

• Magnesium

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