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notka56 [123]
2 years ago
12

The atomic number of gold (Au) is 79, and it has a mass number of 197. How many electrons are present in each atom of gold?

Chemistry
1 answer:
aliya0001 [1]2 years ago
8 0
There would be 79 electrons present in each atom of gold. I hope this helps :)
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Use the data set to answer the question.
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It is both accurate and precise.

Explanation:

Precision and accuracy are two different terms used to describe data or measurements. Accuracy refers to how close a set of measurements/experimental values is to an accepted or correct value while Precision refers to how close a series of experimental values are to one another.

In the given set of data in the question below, the Correct Value is 59.2 while the experimental values are as follows;

Trial 1: 58.7

Trial 2: 59.3

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A chemical reaction produces 3.81g potassium chloride (KCl). How many formula units of potassium chloride are there? *Find Molar
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The number of formula units in 3.81 g of potassium chloride (KCl) is approximately 3.08 × 10²²

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The \ number \ of \ moles \ of \ a \ substance, n = \dfrac{The  \  mass  \  of  \  the substance}{The   \  Molar  \   Mass   \  of  \   the   \  substance}

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