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Questions and Answers
Which subatomic particle has a positive charge?
Which subatomic particle has a positive charge?
What is the smallest unit of matter?
What is the smallest unit of matter?
All atoms of the same element have the same mass.
All atoms of the same element have the same mass.
False
What is the basic unit that makes up a compound?
What is the basic unit that makes up a compound?
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An atom is the smallest unit of matter.
An atom is the smallest unit of matter.
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Describe the structure of an atom at a basic level.
Describe the structure of an atom at a basic level.
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What is the significance of the atomic number of an element?
What is the significance of the atomic number of an element?
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Protons and neutrons are located in the nucleus of an atom.
Protons and neutrons are located in the nucleus of an atom.
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Explain the concept of isotopes in relation to atoms.
Explain the concept of isotopes in relation to atoms.
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______ are made up of protons, neutrons, and electrons
______ are made up of protons, neutrons, and electrons
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An element is determined by the number of ______ in its nucleus
An element is determined by the number of ______ in its nucleus
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The ______ of an element is the average mass of its isotopes
The ______ of an element is the average mass of its isotopes
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Study Notes
Subatomic Particles
- Protons have a positive charge.
Atomic Structure
- An atom is the smallest unit of matter.
- At a basic level, the structure of an atom consists of protons and neutrons located in the nucleus, surrounded by electrons.
Elements and Isotopes
- All atoms of the same element have the same atomic number, which determines the element.
- Isotopes of an element have the same atomic number but differ in their atomic mass due to varying numbers of neutrons in the nucleus.
- The atomic mass of an element is the average mass of its isotopes.
Compounds and Atomic Units
- Atoms are the basic units that make up a compound.
- Atomic units are made up of protons, neutrons, and electrons.
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Description
Test your knowledge about atoms and matter with this quiz. Answer questions about the smallest unit of matter, subatomic particles, and compounds.
