Match Each Term to Its Definition or Characteristic

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 are the electrons in the outer energy level (shell) called?

A) Covalent electrons
B) Bonding electrons
C) Valence electrons
D) Ionic electrons