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Nostrana [21]
1 year ago
8

Why is the average atomic mass in the periodic table a decimal?

Chemistry
1 answer:
valkas [14]1 year ago
4 0
Many of the atomic masses listed on the periodic table are decimal values because it's the weighted average mass of all of the isotopes of that element.
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What do these elements make:<br> neodymium, rhenium and sulfur
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Answer:

Neodymium makes flints inside of lighters. It also takes away the green color off of glass. Rhenium is added with tungsten and molybdenum which makes filaments for lamps. Sulfur makes sulfuric acid which makes batteries and cleaners and can process ores.

Explanation:

An interesting fact for each element:

Neodymium is known for the atomic symbol Nd and the atomic number 60.

Rhenium is known for the atomic symbol Re and the atomic number 75.

Sulfur is known for the atomic symbol S and the atomic number 16.

I hope the Answer answers your question. I gave you some facts to remember those elements in the periodic table!

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Elena held a rock weighing 1 N in her hand. The rock has no velocity. <br> KE________?
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KE = 0

<h3>Further explanation  </h3>

Energy is the ability to do work  

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\large{\boxed{\bold{KE=\frac{1}{2}mv^2}}}

So for two objects that have the same speed, the greater the mass of the object, the greater the kinetic energy  

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see explanation below

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Question is incomplete, so in picture 1, you have a sample of this question with the missing data.

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