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RSB [31]
2 years ago
8

Why does a beta particle have an atomic number of -1

Chemistry
1 answer:
Fudgin [204]2 years ago
6 0
I cant entirely tell for now but an article on rodioactivity should solve the problem
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Samples with masses of 5.5 g 2.27 g and 0.8995 g are mixed together. The sum of the masses of the three
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Answer:

m=8.7g

Explanation:

Hello,

In this case, it is widely known that when measurements with different significant figures are put under mathematical operations, the final result must be displayed with the same amount of significant figures of the shortest measurement, thus, due to the fact that 5.5 g has two significant figures only the result is consequently shown with two significant figures as well as shown down below:

m=5.5g+2.27g+0.8995g\\\\m=8.6695g

By rounding the first six to seven due to the fact that the next six is greater than five, according to rounding rules, the result is:

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