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Questions and Answers
What is the smallest particle of an element that still retains its properties?
What is the smallest particle of an element that still retains its properties?
- Molecule
- Atom (correct)
- Electron
- Compound
What is the overall charge of a proton?
What is the overall charge of a proton?
- Negative
- Variable
- Neutral
- Positive (correct)
Where are the electrons located within an atom?
Where are the electrons located within an atom?
- In energy levels or shells around the nucleus (correct)
- Scattered randomly within the atom
- Inside the nucleus
- Attached to the protons
What is a substance made up of only one type of atom?
What is a substance made up of only one type of atom?
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What is a substance made up of two or more different types of atoms chemically bonded together?
What is a substance made up of two or more different types of atoms chemically bonded together?
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What is a material made up of two or more substances physically combined (not chemically bonded) with variable composition?
What is a material made up of two or more substances physically combined (not chemically bonded) with variable composition?
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Study Notes
Atomic Structure
- The smallest particle of an element that still retains its properties is an atom.
Protons
- A proton has an overall charge of +1.
Electron Location
- Electrons are located outside the nucleus of an atom.
Elements and Compounds
- A substance made up of only one type of atom is an element.
Compounds
- A substance made up of two or more different types of atoms chemically bonded together is a compound.
Mixtures
- A material made up of two or more substances physically combined (not chemically bonded) with variable composition is a mixture.
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