Periodic Table Review for Test

Why is an atom neutral?

• Because the number of protons equals the number of neutrons.

• Because all atoms are neutral.

• Because the number of POSITIVE protons equals the number of NEGATIVE electrons.

• Because the atomic number and the atomic mass are the same.

Name the number of protons, neutrons, and electrons.

• 12 protons, 12 neutrons, 12 electrons

• 12 protons, 11 neutrons, 10 electrons

• 12 protons, 11 neutrons, 12 electrons

• 24 protons, 11 neutrons, 10 electrons

What element is represented in this Bohr Model?

• Lithium
• Boron
• Carbon
• Neon

Tags

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What three values are equal in an atom?

• protons, neutrons, electrons

• electrons, protons, ions

• protons, electrons, atomic number

• atomic mass, atomic number, neutrons

Where is the atomic mass found?

• Top left corner

• middle of the box

• bottom of the box

• it is not found in this picture

The particles that are found in the nucleus of an atom are

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Tags

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Which of the following are subatomic particles? (Check all that apply)

• protons

• neutrons

• megatrons

• electrons

Tags

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What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

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Which two subatomic particles have the same mass?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• ions and electrons

How do you calculate the number of neutrons in an atom?

• electrons - atomic number = neutrons

• protons - electrons = neutrons

• mass + atomic number = neutrons

• mass - atomic number = neutrons