Multiple Choice
Which of the following best matches the description?
-Central region of an atom.
A) respiration
B) pH
C) enzyme
D) ion
E) photosynthesis
F) acid
G) combustion
H) potential energy
I) none of above
J) base
K) proton
L) electron
M) isotope
N) neutron
O) kinetic energy
P) nucleus
Q) entropy
R) latent heat
Correct Answer:

Verified
Correct Answer:
Verified
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