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Solnce55 [7]
3 years ago
12

How many valence electrons does fluorine have?

Chemistry
2 answers:
aalyn [17]3 years ago
4 0

Answer:

Fluorine (F) has 7 valence electrons.

Explanation:

Fluorine (F) has 7 valence electrons. Fluorine belongs to group 7 in the periodic table. Group 7 elements are known as halogens. Fluorine is halogen and is the most electronegative element among the halogens. As Fluorine (F) has 7 valence electrons it has a tendency to accept another electron and complete an octet (8 electrons). Fluorine (F) forms a fluoride ion (anion) by accepting one more electron in its valence shell.

ahrayia [7]3 years ago
3 0
Seven valence electrons .
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Answer:

look at the photo below

Explanation:

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Why is it impossible for scientists to use macroscopic tools such as scissors to create nanoparticles?.
swat32

Nano particles are very small and can not be seen with eyes measuring between 1 to 100 n m. Because of their small size, they can't be made from macroscopic tools.

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8 0
2 years ago
What is the boiling point of a solution produced by adding 610 g of cane sugar (molar mass 342.3 g/mol) to 1.4 kg of water? For
wel

Answer:

Boiling point of solution is 100.65^{0}\textrm{C}

Explanation:

Cane sugar is a non-volatile solute.

According to Raoult's law for a non-volatile solute dissolved in a solution-

                              \Delta T_{b}=K_{b}.m

Where, \Delta T_{b} is elivation in boiling point of solution, K_{b} is ebbulioscopic constant of solvent (how much temperature is raised for dissolution of 1 mol of non-volatile solute) and m is molality of solution.

Here, K_{b}=0.51^{0}\textrm{C}.kg.mol^{-1}

610 g of cane sugar = \frac{610}{342.3} moles of cane sugar

                                  = 1.78 moles of cane sugar

So, molality of solution (m) = \frac{1.78}{1.4}mol.kg^{-1}=1.27mol.kg^{-1}

Plug in all the values in the above equation, we get-

\Delta T_{b}=0.51^{0}\textrm{C}.kg.mol^{-1}\times 1.27mol.kg^{-1}=0.65^{0}\textrm{C}

So, boiling point of solution = (100+0.65)^{0}\textrm{C}=100.65^{0}\textrm{C}              

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Why does hot chocolate powder dissolve faster in hot water than cold water
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Answer:

option B. they both generate radioactive wastes.

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