Answer:
the molecules of each substance attract each other through dispersion (London) intermolecular force.whether a substance is solid, liquid or gas depends on the balance between the kinetic energies of the molecules and their intermolecular attractions.
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A = mass number, A = protons + neutrons
Z = atomic number, Z = protons
neutrons = A - Z
neutrons = 18 - 8 = 10
The atomic mass is the average of the isotopes of the element meaning most averages of isotopes will not be whole numbers
Answer:
C
Explanation:
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Answer:
a
Explanation:
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