Match Each Term to Its Definition or Characteristic

Multiple Choice

Match each term to its definition or characteristic.
a.galactose
k.catalyst
b.electron
l.polar
c.radioactivity
m.buffer
d.proton
n.anion
e.amino group
o.enzymes
f.glucose
p.matter
g.compounds
q.neutron
h.carboxyl group
r.atomic weight
i.cation
s.fructose
j.glycogen
-What differentiates one element from another?

A) The number of shells encircling the nucleus
B) The number of electrons
C) The number of neutrons
D) The number of protons