1.1 Chemistry of Living Things Formative Assessment

What is the definition of isotopes?

• Same number of neutrons, but different numbers of protons

• Same number of protons, but different numbers of neutrons

• Same number of protons, but different numbers of electrons

• Same number of protons and neutrons

Which bonds are intramolecular forces?

• Ionic bond

• Hydrogen bond

• Polar covalent bond

• Nonpolar covalent bond

Which functional group contains a -NH₂ group?

• Hydroxyl

• Sulfhydryl

• Amine

• Carbonyl

Which of the following is an example of an intermolecular force??

• Covalent bond

• Metallic bond

• Ionic bond

• Hydrogen bond

The ability of an atom to attract electrons towards itself when in a bond is called

(a)  

What is the main difference between polar and nonpolar covalent bonds?

• Polar bonds share electrons equally, nonpolar bonds do not

• Nonpolar bonds share electrons equally, polar bonds do not

• Polar bonds involve the transfer of electrons, nonpolar bonds do not

• Nonpolar bonds involve the transfer of electrons, polar bonds do not

What is a cation?

• A negatively charged ion

• A positively charged ion

• A neutral molecule

• An ion with both positive and negative charges

Which functional group is shown?

• Hydroxyl

• Sulfhydryl

• Carboxyl

• Carbonyl

Atoms with large electronegativity differences form _____________ covalent bonds.

• Ionic

• Polar

• Pure

• Nonpolar

The following diagram is an example of a

• Molecular formula

• Structural formula

• Line diagram

• Condensed formula