Basics of Chemistry

What is an atom?

• The smallest unit of matter

• The smallest unit of measurement

• Your next door neighbor

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NGSS.MS-PS1-1

Which part of the atom has a positive charge?

• Proton

• Neutron

• Electron

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Which part of the atom has a negative charge?

• Proton

• Neutron

• Electron

Which part of the atom has a neutral charge?

• Proton

• Electron

• Neutron

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NGSS.MS-PS1-1

What is the center of the atom called?

• Orbital

• Ring

• Nucleus

Electrons move around the orbital of the atom. T/F?

• False

• True

What are atoms made up of?

• Protons, neutrons, electrons

• Protons, nucleus, electrons

• Proteins, neutrons, electrons

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NGSS.MS-PS1-1

Which particles are found in the nucleus?

• Electrons and protons

• Electrons and neutrons

• Protons and neutrons

What does the atomic number tell you?

• The number of neutrons

• The number of protons

• The number of protons + neutrons

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NGSS.MS-PS1-1

What does the atomic mass tell you?

• The number of neutrons + protons

• The number of electrons

• The number of electrons + protons

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NGSS.MS-PS1-1