Basic Chemistry Review

What is the smallest basic unit of matter?

• Cell
• Atom
• Organism
• Electron

Hydrogen is one type of atom

• True
• False

Which one is in the nucleus of an atom?

• Protons
• Electrons
• Neutrons

Protons have what charge?

• Positive
• Negative
• Neutral

Neutrons have what charge?

• Positive
• Negative
• Neutral

Electrons have what type of charge?

• Positive
• Negative
• Neutral

What is made of atoms of different elements bonded together?

• Organisms
• Cells
• Compounds
• Ion

What is an atom that has gained or lost an electron?

• Ion
• Proton
• Compound
• Neutron

What type of bond forms between oppositely charged ions?

• Ionic
• Covalent
• Hydrogen
• Peptide

What type of bond forms when atoms share a pair of electrons?

• Ionic
• Covalent
• Hydrogen
• Peptide