unit 10- biochem Flashcards
1
Q
ionic bonding vs. covalent bonding
A
ionic- atom donates electrons to another
covalent- atoms share electrons
2
Q
protons location
A
nucleus
3
Q
neutrons location
A
nucleus
4
Q
electron location
A
orbital around nucleus
5
Q
first ring/orbital can have a max of how many electrons?
A
2
6
Q
second ring/orbital can have a max of how many electrons?
A
8
7
Q
element
A
substance that cannot be broken down any more
8
Q
compounds
A
substances that contain 2+ elements
9
Q
what is the smallest unit of matter?
A
atoms
10
Q
protons = …
A
atomic #
11
Q
protons + neutrons =
A
mass #
12
Q
protons = what in neutral form?
A
electrons
13
Q
isotope
A
element with same number of protons but diff. number of neutrons
14
Q
ions
A
when an element gain/loses electrons
15
Q
Ions - negative numbers mean…
A
added that # to the proton # to get electron#
