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Questions and Answers
What is the definition of an atom?
What is the definition of an atom?
- A group of sub-atomic particles with no chemical properties
- The largest particle of an element
- A combination of protons, neutrons, and electrons
- The smallest particle that can exist with the chemical properties of an element (correct)
What are atoms made up of?
What are atoms made up of?
- Protons and electrons
- Molecules
- Sub-atomic particles
- Neutrons, protons, and electrons (correct)
Which part of an atom is positively charged?
Which part of an atom is positively charged?
- Proton (correct)
- Neutron
- Electron
- Nucleus
How are elements formed?
How are elements formed?
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Why are protons and neutrons collectively called nucleons?
Why are protons and neutrons collectively called nucleons?
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What instrument is used to observe individual atoms?
What instrument is used to observe individual atoms?
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Which sub-atomic particle is responsible for providing an atom with its chemical properties?
Which sub-atomic particle is responsible for providing an atom with its chemical properties?
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What defines an atom as the smallest particle of an element?
What defines an atom as the smallest particle of an element?
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Which scientist proposed the model of the atom wherein protons and neutrons are in the nucleus, and electrons are in orbits around it?
Which scientist proposed the model of the atom wherein protons and neutrons are in the nucleus, and electrons are in orbits around it?
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In an atom, which part is very small compared to the size of the entire atom?
In an atom, which part is very small compared to the size of the entire atom?
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Why are neutrons and protons collectively called nucleons?
Why are neutrons and protons collectively called nucleons?
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What is the approximate diameter of a single atom?
What is the approximate diameter of a single atom?
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