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Questions and Answers
What is the mass number of an element?
What is the mass number of an element?
- The total number of subatomic particles in each atom
- The number of protons plus the number of neutrons in each atom (correct)
- The number of electrons in each atom
- The number of protons in each atom
What is the main reason noble gases are considered stable?
What is the main reason noble gases are considered stable?
- They have a high number of protons
- They have a high reactivity with other elements
- They have a low number of neutrons
- They have completely filled outermost energy levels (correct)
What defines each element uniquely?
What defines each element uniquely?
- The mass number of the element
- The number of neutrons in the atoms of that element
- The number of protons in the atoms of that element (correct)
- The number of electrons in the atoms of that element
What is the role of chemical bonds?
What is the role of chemical bonds?
What are the three major types of subatomic particles in an atom?
What are the three major types of subatomic particles in an atom?
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