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Llana [10]
3 years ago
10

How do you find the number of valence electrons

Chemistry
2 answers:
melamori03 [73]3 years ago
8 0
It’s the number of the group it’s in and when you get to 11-18 you would just have 1 for 11 then 2 for 12 and you get the point you know 3 for 13
Ganezh [65]3 years ago
6 0

Answer:LULULLUL

Explanation:

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Which example is a homogenous mixture of two or more pure substances? alcohol
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Answer:

Alcohol and water.

Explanation:

Alcohol and water is a homogenous mixture. because these two liquids are soluble, miscible in all composition. A homogenous mixture is a solution that has equal  composition of its components.

Irregular mixing of two liquid components have different refractive indexes. At a high temperature, it can become inhomogenous spontaneously.

A solution is a type of homogenous mixture which composed of two or more substances. In a mixture a solute is a substance, dissolves in other substance that is solvents like alcohol and water, alcohol is solute and water is a solvent.

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3 years ago
If I mix bleach and namona and throw it on a person what will happen​
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They have the chance to inhale toxic fumes secreted by the mixture.

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7 0
3 years ago
Can some atoms exceed the limits of the octet rule in bonding? If so, give an example.
harkovskaia [24]

Answer:

Yes. Example: <u>Sulfur hexafluoride (SF₆) molecule</u>

Explanation:

According to the octet rule, elements tend to form chemical bonds in order to have <u>8 electrons in their valence shell</u> and gain the stable s²p⁶ electronic configuration.

However, this rule is generally followed by main group elements only.

Exception: <u>SF₆ molecule</u>

In this molecule, six fluorine atoms are attached to the central sulfur atom by single covalent bonds.

<u>Each fluorine atom has 8 electrons in their valence shells</u>. Thus, it <u>follows the octet rule.</u>

Whereas, there are <u>12 electrons around the central sulfur atom</u> in the SF₆ molecule. Therefore, <u>sulfur does not follow the octet rule.</u>

<u>Therefore, the SF₆ molecule is known as a </u><u>hypervalent molecule</u><u> or expanded-valence molecule.</u>

6 0
3 years ago
The actet rule indicates that
Nimfa-mama [501]

an atom will gain or lose electrons to obtain 8 electrons in it's outer shell. In other words, elements want to reach an electron configuration of the nearest noble gas.

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3 years ago
Which option best describes hydrolysis?
Bezzdna [24]
: A chemical process of decomposition involving the splitting of a bond by the addition of water.
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2 years ago
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