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Questions and Answers
What is the relationship between the number of valence electrons and valency?
What is the relationship between the number of valence electrons and valency?
- Valency is the number of valence electrons
- Valency is unrelated to the number of valence electrons
- They are equal
- Valency is determined by the number of valence electrons involved in bonding (correct)
What is meant by atomic mass number?
What is meant by atomic mass number?
- It is the total mass of an atom
- It is the average mass of all isotopes of an element
- It is the sum of protons, neutrons, and electrons in an atom
- It is the sum of protons and neutrons in an atom (correct)
What is meant by a subatomic particle?
What is meant by a subatomic particle?
- A particle that makes up an atom (correct)
- A particle found within the nucleus of an atom
- A particle with no electrical charge
- A particle smaller than an atom
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