Organisms are composed of molecules,which are collections of smaller units,called
A) molecules.
B) atoms.
C) electrons.
D) polymers.
E) ions.
Correct Answer:
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Q5: When atoms gain or lose electrons,they become
Q6: Carbon-12,Carbon-13 and Carbon-14 are examples of _.
A)radioactivity
B)isotopes
C)isomers
D)molecules
Q7: All atoms possess _,defined as the ability
Q8: The number of protons in a given
Q9: The _ of water molecules determines its
Q11: Negatively charged particles of atoms with almost
Q12: Bohr proposed that atoms of any kind
Q13: Water molecules are polar with ends that
Q14: There are 92 naturally occurring _,each made
Q15: _ is defined as the negative logarithm
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