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aleksandr82 [10.1K]
2 years ago
8

Why is most of the mass of an atom in the nucleus

Chemistry
2 answers:
nirvana33 [79]2 years ago
5 0

Answer:

The nucleus contains the majority of an atom's mass because protons and neutrons are much heavier than electrons, whereas electrons occupy almost all of an atom's volume. The diameter of an atom is on the order of 10−10 m, whereas the diameter of the nucleus is roughly 10−15 m—about 100,000 times smaller.

Explanation:

hope it helps you

Mrrafil [7]2 years ago
5 0
This is because protons and neutrons are heavier than electrons as opposed to where electrons occupy most of an atoms volume
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To find this, we will use this formula:

Molar mass of element
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So, first lets calculate the mass of the compound as a whole. We use the atomic masses on the periodic table to determine this.

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When we add all of those numbers up together, we get 164.086. That is the molar mass for the whole compound. However, we are trying to figure out what percent of the compound oxygen makes up. From the molar mass, we know that 95.994 of the 164.086 is oxygen. Lets plug those numbers into our equation!

95.994
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When we divide those two numbers, we get .585. When we multiply that by 100, we get 58.5.

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