Why is there an atomic mass unit?
Why? Because atoms have definite and measurable masses....
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The atomic mass unit (amu) is used to express the mass of atoms and subatomic particles because the masses involved are extremely small and expressing them in grams would result in inconveniently large numbers.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- Why are cations smaller and anions larger in radii than their parent atom?
- What is keeping the protons and neutrons in the nucleus? Why aren't they flying into outer space?
- How do the 3 states of matter differ from one another?
- What gas has 8 protons and 8 neutrons?
- Why do we need Calcium hydroxide in concrete? Is it necessary there?

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