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Questions and Answers
What is the main difference between the atoms of lithium and carbon?
What is the main difference between the atoms of lithium and carbon?
- Atomic number
- Atomic mass (correct)
- Number of electrons
- Number of protons
Which component of an atom has almost no mass?
Which component of an atom has almost no mass?
- Electron (correct)
- Nucleus
- Proton
- Neutron
What do the atomic number and mass number of an element represent?
What do the atomic number and mass number of an element represent?
- Number of protons and electrons
- Sum of protons and electrons
- Sum of protons and neutrons (correct)
- Number of electrons and neutrons
Which term describes a unique number that corresponds to the number of protons in an element?
Which term describes a unique number that corresponds to the number of protons in an element?
The atomic number of an element is equal to the number of:
The atomic number of an element is equal to the number of:
What does the mass number of an element represent?
What does the mass number of an element represent?
What are the three subatomic particles that make up an atom?
What are the three subatomic particles that make up an atom?
Which model accurately depicts the structure of an atom?
Which model accurately depicts the structure of an atom?
What is the name of the dense, positively charged region at the center of an atom?
What is the name of the dense, positively charged region at the center of an atom?
Which subatomic particle carries a positive charge?
Which subatomic particle carries a positive charge?
What determines the identity of an element?
What determines the identity of an element?
Which subatomic particle is electrically neutral?
Which subatomic particle is electrically neutral?
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