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Aleonysh [2.5K]
2 years ago
8

How many protons are in the nucleus of an atom with an atomic number of 15?

Chemistry
1 answer:
Vitek1552 [10]2 years ago
3 0
15 because atomic no. is the number of protons
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How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?
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EXPERIMENT: DETERMINING VOLUME
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Explanation:

(Ques- A) Why does the first method for determining volume work only for a regular-shaped object?

<u>(Ans- A)</u> <em>Because the method requires precise dimensions of objects for result, which is not possible for irregular shaped objects.</em>

(Ques - B) Will the second method for determining volume work for any object or just an odd-shaped one? Why?

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(Ques - C) Is one method of measurement more accurate than the other? Why or why not?

<u>(Ans-C)</u> <em>Both are pretty accurate, with some experimental errors which may creep in accidentally. </em>

(Ques- D) Would the displacement method of measurement work for a cube of sugar? What about a cork? Why?

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<u>(Ans- E)</u> <em>I learnt about determining volume of different objects from this investigation. </em>(Sorry, I know its not a very thoughtful answer)

7 0
3 years ago
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