Ch. 2 - The Chemistry of Life

Question 1

All living things are made of ____

Answer 1

Matter

Question 2

What is an atom?

Answer 2

The smallest unit of matter

Question 3

What are the subatomic particles? (in other words, what are the parts of an atom?)

Answer 3

electron, proton, neutron

Question 4

What is the difference between an ionic bond and a covalent bond?

Answer 4

ionic bond: when two atoms bond to each other by transferring an electron from one atom to the next

covalent bond: when two atoms bond to each other by sharing an electron with each other

Question 5

What are Van der Waals forces?

Answer 5

A type of “intermolecular force” and NOT a chemical bond. When molecules are close together, a slight attraction can develop between the oppositely charged regions of nearby molecules

Question 6

What are the charges for proton, electron, neutron?

Answer 6

proton –> +
electron –> -
neutron –> no charge (neutral)