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Ludmilka [50]
3 years ago
12

The mass of an atom is ________________________.

Physics
1 answer:
alexandr402 [8]3 years ago
7 0
The mass of an atom comes from the protons and neutrons that is found in the nucleus. The number of protons is the atomic number of an element. To find the number of neutrons, subtract the atomic number from the mass of an atom. For example, sodium’s atomic number is 11. This will tell us that sodium has 11 protons in it. The atomic mass of sodium is 23. So subtract 23 form 11 gives us 12. Therefore, there are 12 neutrons in sodium.
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Which of the following is same dimension quantity?
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Answer:

Find the dimension of each and every quantity in all the options to check whether they are the same or not. We can use any one formula of each identity to find its dimension.

Complete step by step solution:

To find the dimension of a quantity, we can use any formula related to that quantity but we will use the easiest ones to save time.

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Dimension of force =[M][LT−2]=[MLT−2]=[M][LT−2]=[MLT−2]

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p=mvp=mv

Dimension of momentum=[M][LT1]=[MLT−1]=[M][LT1]=[MLT−1]

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I=F×tI=F×t

Dimension of impulse=[MLT−2][T]=[

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