fundamentals of chemistry Flashcards
1
Q
atomic mass
A
protons + neutrons
2
Q
measurement of mass of atoms
A
daltons
3
Q
ions
A
loses electrons, charged particles
4
Q
cations
A
more protons than electrons, positively charged
5
Q
isotopes
A
same protons different neutrons
6
Q
radioactive decay
A
- less stable decays faster
- damage cells producing genetic mutations, cell death
7
Q
orbitals
A
-each hold 2 paired electrons with opposite spins
8
Q
oxidation
A
loss of electron
9
Q
reduction
A
gain of electron
10
Q
redox reaction
A
one atom/molecule is oxidised while another is reduced at the same time
