Illustrated here are three different of carbon. They vary by the number of
1 answer:
D) isotopes; neutrons
Explanation:
The diagram illustrates the three different isotopes of carbon. They vary by the number of neutrons.
Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their various nuclei.
- Isotopes of elements have the same electronic configuration
- They share the same chemical properties
- They differ in masses due the number of neutrons they contain.
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Answer:
For a gas held at constant temperature, we can apply Boyle's law, which states that the product between the gas pressure and its volume is constant:
where
P is the pressure
V is the volume
As we see from the equation, P and V are inversely proportional to each other: this means that when the volume is decreased, the pressure increases, and vice-versa. The reason for that is that when the volume is decreased, the gas is compressed, so the molecules of the gas come closer to each other, so they collide more frequently with the wall of the container, exerting therefore a greater pressure.