chemistry 1.1 notes Flashcards
proton
positive
electron
negative
neutron
neutral
elements
substances that cannot be broken down chemically into simpler substances
what are the 6 elements all living organisms have
oxygen, carbon, hydrogen, nitrogen, calcium, phosphorous
compounds
Form when electrons from elements
are either attracted to, shared with or transferred from one to another via a chemical bond
ionic
electrons transfer from one element to another, oppositely charged ions are attracted
hydrogen
interaction between slightly charged molecules
covalent
two atoms share one more more pairs of electrons
cohesion & adhesion
the ability to stick to itself and to something else
universal solvent
the medium for biological reactions and processes throughout all life
high specific heat
requires a lot of energy to change states of matter
density
more dense as a liquid than a solid- all due to hydrogen bonding
macromolecules
Carbon chains combined to form the backbone of large molecules- found in all living things
monomers
small, basic units
polymers
complex structures of monomers