An atom of calcium contains 20 protons. How many electrons does it have?
Noah AldrichHmmm, for
A neutral metal should contain how many negative particles if there are 20 protons, or 20 positively charged nuclear particles. To find out for sure, consult a periodic table.
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Axel AlvaradoSince the number of protons (which determines the element) is equal to the number of electrons in a neutral atom, a calcium atom with 20 protons also has 20 electrons.
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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.
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