STAAR Review

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

The nucleus of an atom is made of

• electrons and protons
• electrons and neutrons
• protons and neutrons
• empty space

Outside the nucleus of an atom are these

• protons
• neutrons
• quarks
• electrons

The mass of this particle is so small that it is not counted.

• proton
• electron
• neutron
• quark

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What does 9 represent on this periodic table square?

• 9 protons

• 9 neutrons

• atomic mass

• 9 elements

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The number 17 on this element square tells us that Chlorine atoms have

• 17 atoms

• 17 Neutrons & Protons

• 17 Protons, Electrons, and an atomic # of 17

• An atomic # of 17, 17 Protons, and 17 Neutrons

Tags

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Refer to the image. Which of these is NOT found in the nucleus of an atom?

• protons

• neutrons

• electrons

• atomic mass

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When determining an element's identity, what is the most important subatomic particle to examine?

• protons

• neutrons

• electrons

• atomic mass