Final Exam Review

What is the middle or centre part of an atom called?

• Proton

• Neutron

• Electron

• Nucleus

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NGSS.HS-PS1-8

These particles have a positive (+) charge.

• Proton

• Neutron

• Electron

• Nucleus

Tags

NGSS.MS-PS1-1

These particles have a negative (-) charge.

• Proton

• Neutron

• Electron

• Nucleus

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NGSS.MS-PS1-1

These particles have a neutral or no (0) charge.

• Proton

• Neutron

• Electron

• Nucleus

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NGSS.MS-PS1-1

An atom of Aluminum has 13 Protons, 14 Neutrons and 13 Electrons. How many positive (+) charges does it have?

• 13

• 14

• 27

• 0

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NGSS.MS-PS1-1

The atomic number always tells you

• the number of protons
• the number of electrons
• the number of neutrons
• the mass of an atom

Atomic Mass is composed of

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

Tags

NGSS.MS-PS1-1

The two particles that affect the charge of an atom are:

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

The periodic table is arranged by

• atomic number
• atomic mass
• alphabetically

Tags

NGSS.HS-PS1-1

If the number of electrons is changed, the atom is called

• an ion
• an isotope
• the name is the same
• you cannot change the number of electrons