Ch. 2 - The Chemistry of Life Flashcards
Chapter 2
All living things are made of ____
Matter
What is an atom?
The smallest unit of matter
What are the subatomic particles? (in other words, what are the parts of an atom?)
electron, proton, neutron
What is the difference between an ionic bond and a covalent bond?
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
What are Van der Waals forces?
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
What are the charges for proton, electron, neutron?
proton –> +
electron –> -
neutron –> no charge (neutral)