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Questions and Answers
What distinguishes chemical elements from each other?
What distinguishes chemical elements from each other?
- The number of neutrons in their atoms
- The number of protons in their atoms (correct)
- The number of electrons in their atoms
- The number of photons in their atoms
Which subatomic particle has a positive electric charge?
Which subatomic particle has a positive electric charge?
- Neutron
- Electron
- Photon
- Proton (correct)
What is the size of an atom compared to a human hair?
What is the size of an atom compared to a human hair?
- Atoms are 100 times smaller than a human hair
- Atoms are the same size as a human hair
- Atoms are 1,000 times smaller than a human hair
- Atoms are 1,000,000 times smaller than a human hair (correct)
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