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Pre-Test
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1
Atoms with the same number of protons and a different number of neutrons are
A)ions.
B)isotopes.
C)positively charged.
D)negatively charged.
2
The chemical behavior of atoms is determined by the
A)electrons.
B)neutrons.
C)protons.
D)All of the above
3
An atom with eight electrons and six protons is an example of a(n)
A)molecule.
B)mole.
C)isotope.
D)ion.
4
_______________ bonds link most of the atoms in the human body.
A)Hydrogen
B)Covalent
C)Ionic
D)All of the above
5
_____________ allows water molecules to stick together and form droplets.
A)Cohesion
B)Adhesion
C)Surface tension
D)Capillary action





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