A carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons. how many protons does a carbon-14 atom have?
2 answers:
Answer: Option (a) is the correct answer.
Explanation:
As the given atom is so, it means that it contains 6 protons. Also, when an atom is neutral then its number of protons equal to the number of electrons.
Atomic mass means the sum of total number of protons and neutrons present in an atom. As is an isotope of
. And, all the isotopes of carbon or any other element contains the same number of protons but different number of neutrons.
Therefore, there will be 6 protons present in .
Thus, we can conclude that carbon-14 atom have 6 protons.
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According to Graham's Law of Diffusion,"the rates of diffusion of two gases are inversely proportional to the square root of their Molar masses or Densities at the same pressure and temperature".
r₁ / r₂ =
Where,
r₁ = Rate of Helium
r₂ = Rate of Oxygen
M₂ = Molar mass of Oxygen = 32 g/mol
M₁ = Molar mass of Fluorine = 4 g/mol
Putting values,
r₁ / r₂ =
r₁ / r₂ =
r₁ / r₂ = 2.82
Result:
Helium gas effuses 2.82 times faster than Oxygen gas.
r₁ / r₂ =
Where,
r₁ = Rate of Helium
r₂ = Rate of Oxygen
M₂ = Molar mass of Oxygen = 32 g/mol
M₁ = Molar mass of Fluorine = 4 g/mol
Putting values,
r₁ / r₂ =
r₁ / r₂ =
r₁ / r₂ = 2.82
Result:
Helium gas effuses 2.82 times faster than Oxygen gas.