Review Thomas

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

The positive particles of an atom are 

• Electrons 
• Positrons 
• Neutrons 
• Protons 

The central region of an atom where its neutrons and protons are is its _______.

• Nucleus 
• Electron cloud
• Core 
• Center 

Particles in an atom that are neutral and have no charge are ______. 

• Negatrons 
• Electrons 
• Neutrons 
• Protons 

Bonds that hold a water molecule together are called ____________.

• Covalent Bonds

• Ionic Bonds

• Hydrogen Bonds

• Water Bonds

Bonds between multiple water molecules are called ____________.

• Hydrogen Bonds

• Covalent Bonds

• Ionic Bonds

• Water Bonds

There are partial charges within a water molecule which cause water to have special properties. This makes water a ________ molecule.

• Polar

• Nonpolar

• Hydrophobic

• Ionic

What makes water a universal solvent?

• It is a polar molecule that can form hydrogen bonds, allowing it to dissolve many substances.

• It is a nonpolar molecule that can form hydrogen bonds, allowing it to dissolve many substances.

• It is a polar molecule with a low specific heat, allowing it to dissolve many substances.

• It is a nonpolar molecule with a low specific heat, allowing it to dissolve many substances.

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

DNA and RNA are examples of 

• Carbohydrates
• Lipids
• Proteins
• Nucleic Acids