Atoms and Elements

What are atoms made up of?

• Protons and Neutrons

• Protons and Electrons

• Neutrons and Electrons

• Protons, Neutrons, and Electrons

Which subatomic particle has the most mass?

• Proton

• Neutron

• Electron

• They all have the same mass

What is the charge of a proton?

• Positive

• Negative

• Neutral

• No charge

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• No charge

What is the charge of an electron?

• Positive

• Negative

• Neutral

• No charge

What does it mean if an element is pure?

• It is made up of different types of atoms

• It is made up of only one type of atom

• It is a mixture of different elements

• It cannot be split

What is pure gold made up of?

• Gold atoms

• Silver atoms

• Carbon atoms

• Nitrogen atoms

What color is a diamond if some carbon atoms are replaced by boron?

• Yellow

• Blue

• Green

• Colorless

What percentage of sodium chloride is obtained from seawater?

• 35%

• 68%

• 100%

• 23.8%

What is the product of the reaction: Magnesium + Oxygen?

• Magnesium oxide

• Silver chloride

• Sodium sulfate

• Barium sulfate