Atoms Brainpop

What characteristics are shared by all alkali metals and alkaline earth metals?

• They conduct electricity very well.

• They are strong and shiny.

• They form alkaline solutions when mixed with water.

• They do not react with water at all.

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Carbon has an atomic number of 6. What can you conclude about carbon from this fact?

• It has 6 protons.

• It has 6 neutrons.

• It's in group 6.

• It's in period 6.

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Noble gases are sometimes called "inert gases." What can you infer about the meaning of the word "inert" in chemistry?

• It refers to substances that easily lose electrons.

• It refers to substances that do not react with other substances.

• It refers to substances that have strong electrochemical charges.

• It refers to gases.

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What do the orange and yellow spheres represent in this model of an atomic nucleus?

• Gluons and leptons.

• Protons and neutrons.

• Positrons and electrons.

• Atoms and molecules.

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What do the elements highlighted in red have in common?

• The same number of protons.

• The same number of electrons.

• The same number of neutrons.

• The same number of electron shells.

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Which of the following is a true statement?

• Periods form horizontal rows; groups form vertical columns.

• Groups form horizontal rows; periods form vertical columns.

• Categories form horizontal rows; gases form vertical columns.

• Gases form horizontal rows; categories form vertical columns.

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What is true of all atoms?

• They are electrically charged.

• They contain more than one electron shell.

• They have full outer electron shells.

• They contain at least one proton.

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What is one key physical difference between transition metals and poor metals?

• Atomic mass.

• Hardness.

• Reactivity.

• Charge.

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If you wanted to find a sample of fermium, which has an atomic number of 100, where would you look?

• Deep within the Earth.

• In the Earth's atmosphere.

• In outer space.

• In a science lab.

To become positively charged, an atom must:

• Gain a proton.

• Lose a proton.

• Gain an electron.

• Lose an electron.

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