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vodomira [7]
4 years ago
12

Why are there only two elements in the first period of the periodic table?

Chemistry
2 answers:
Korolek [52]4 years ago
8 0

Answer:

The first shell can hold only a minimum of two electrons

Explanation:

Answer via Educere/ Founder's Education

Elena L [17]4 years ago
4 0

D. the first shell can hold only a minimum of two electrons

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One cup of fresh orange juice contains 139 mg of ascorbic acid (vitamin c, c6h8o6) given that one cup = 264.8 ml calculate the m
SVEN [57.7K]
The answer to this question would be: 3 molar
A molar unit will be equal to moles of solute per 1 liter of solvent. In this question, you are given the volume of the solution (264.8ml) and the weight of the molecule(139mg). Since the unit is moles not mg, then you need to convert the molecule into moles. To do that you need to know the ascorbic acid molecular weight which was: 6*12 + 8*1 + 6 *16 =<span>176mg/moles.

molecule in moles= 139mg/ (176 mg/moles)= 0.79 moles

Then the molarity of the juice should be: 0.79 moles/ (1000ml/264ml)= 2.991 M= 3 M</span>
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4 years ago
Periodic Law Directed Reading
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i have a question about atoms. How would i find electrons when the atomic number is the number of protons and electrons?
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The atomic number is the same as the amount of electrons and protons. For example:
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3 0
3 years ago
What was the original volume of a gas if heating it from 22k to 85k produced a volume of 3.8 liters?
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Answer: the original volume was 0.98L

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