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What are the three main components of an atom?

• Protons, electrons, neutrons, and positrons
• Protons, electrons, and isotopes
• Protons, neutrons, and electrons
• Protons, neutrons, and positrons

What is the relationship between atomic number and element identity?

• Atomic number determines the number of neutrons
• Atomic number determines the element's identity
• Atomic number determines the mass of the element
• Atomic number determines the charge of the element

Where are protons and neutrons located within an atom?

• In the electron cloud
• In the outermost energy level
• In the nucleus or center of the atom
• In the first energy level

What is the charge of protons, neutrons, and electrons?

• Protons are negative, neutrons are positive, electrons are neutral
• Protons are positive, neutrons are neutral, electrons are negative
• Protons are neutral, neutrons are negative, electrons are positive
• Protons are positive, neutrons are negative, electrons are neutral

What is the default state of elements on the periodic table?

• Neutral
• Mixed charge
• Negatively charged
• Positively charged

How are ions defined in terms of charge?

• Ions have a charge of zero
• Ions have a positive charge
• Ions have a negative charge
• Ions have a charge that is not zero

How is the charge of an atom computed?

• By multiplying the number of protons and neutrons
• By subtracting the number of electrons from the number of protons
• By adding the number of protons and electrons
• By dividing the number of electrons by the number of protons

What determines whether an ion is positively or negatively charged?

• The number of protons
• The number of isotopes
• The number of electrons
• The number of neutrons

What are isotopes?

• Elements with different numbers of energy levels
• Elements with different numbers of neutrons
• Elements with different numbers of electrons
• Elements with different numbers of protons