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Questions and Answers
What determines whether an element is stable or reactive?
What determines whether an element is stable or reactive?
- The number of protons
- The number of electrons
- The number of electrons in the outer shell (correct)
- The number of neutrons
Why are molecules of the same compound held together?
Why are molecules of the same compound held together?
- Electromagnetic forces
- Adhesive forces
- Gravitational forces
- Cohesive forces (correct)
What is the mass relationship between a proton and a neutron?
What is the mass relationship between a proton and a neutron?
- A neutron is the same mass as a proton (correct)
- A proton is lighter than a neutron
- A neutron is heavier than a proton
- A proton is heavier than a neutron
If an element has 7 electrons in its outer shell, what is its valency?
If an element has 7 electrons in its outer shell, what is its valency?
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How does a catalyst affect chemical reactions?
How does a catalyst affect chemical reactions?
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