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Luba_88 [7]
3 years ago
15

an atom has 2 electrons in the first energy level, 8 electrons in the second energy level, and 1 electron in the third energy le

vel. What is the number of core electrons
Chemistry
1 answer:
yKpoI14uk [10]3 years ago
7 0

Answer:2

Explanation:

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By knowing the natural abundance of minor isotopes, it's possible to calculate the relative heights of M+ and M+1 peaks. If natu
Kitty [74]

Answer:

the relative height of M⁺ : M+1 is; 0.7418 : 0.2228

The relative heights are; In order of increasing mass 100 : 30

Explanation:

Given the data in the question;

The M⁺ peak comes from all ¹²₆C atoms

so, the probability in cholesterol, C₂₇H₄₈O is ( 98.9% )²⁷ = ( 0.989 )²⁷ = 0.7418

The M+1 peak comes from the isotopic carbon ¹³₆C.

so, the probability in cholesterol is ⇒ 1.10% × ( 98.9% )²⁶ = 0.011 × ( 0.989)²⁶

The probability for 27 carbons is ⇒  27 × 0.011 × ( 0.989)²⁶ = 0.2228

Therefore, the relative height of M⁺ : M+1 is; 0.7418 : 0.2228

The relative heights are; In order of increasing mass 100 : 30  

7 0
2 years ago
3. How many moles of KCl is produced according to the chemical reaction?
Liono4ka [1.6K]

Answer:

the answer should be: 12.00 Mol KCIO³ × 3 Mol 0² divided by 2 mol KCIO³ = 18.00 mol 0²

3 0
3 years ago
Read 2 more answers
Can you help me solve this problem???? How many carbon atoms are there in 2.12 molecules of propane? (C3H8)
zhenek [66]
Number of moles = 2.12 mol C3H8.
1 mol C3H8 = 6.02 × 1023 molecules C3H8.
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(3 carbon atoms<span> and 8 hydrogen atoms)</span>
3 0
3 years ago
Why is steel going through a fluid phase during its production
Tems11 [23]
To filter out impurities and so you are able to shape the liquid steel so that when it solidifies you have whatever shape you need, like a steel blade or train rail.
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3 years ago
An object velocity can be described by I s acceleration and direction
irakobra [83]

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Yes.

Explanation:

5 0
3 years ago
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