CHEMISTRY COMMUNITY

Enzo_1I

From what i understand it is necessary to know the shape that corresponds to the formula. This means memorizing which formulas are associated to which shape.

Enzo_1I

For a molecules lewis structure, it is best to find the most stable version. This is determined by finding the lowest energy of the molecule, which is just making the Formal charge equal to zero.

Enzo_1I

Yes. Since VSEPR is valence shell electron pair repulsion, only valence shell electrons determine shape by electron pair repulsion around the molecules central atom.

Enzo_1I

What Is the difference between a molecules geometry and a molecules shape?

Enzo_1I

How do I determine bond angle for a molecule?

Enzo_1I

Polarizing power is used to refer to the ability of a cation to distort an anion. while polarizability refers to the tendency for an anion to become polarized by a cation.

Enzo_1I

For a radical, how to do I determine on what atom in a lewis structure to place an unpaired electron.

Enzo_1I

What makes the elements in the 3rd row and below able to have an expanded octet? And what determines how many electrons an atom can hold if it has an expanded octet?

Enzo_1I

I think it is because the formal charge will always be zero since there is one valence electron and when there is a single bond with another atom, the hydrogen formal charge becomes zero because hydrogen only needs two electrons to be stable.

Enzo_1I

it should be noted that there are exceptions to the octet rule. For example, Hydrogen is most stable when it has 2 electrons in its valence shell.

Enzo_1I

To determine if they share electrons, you could look at the periodic table and see if your compound is made up of two nonmetals. If it is then it shares electrons, since covalent bonds occurs with non metallic atoms.

Enzo_1I

because when there are multiple bonds, the bonding electrons pull on the center nucleus more than single bonds, which pulls atoms closer to each other.

Enzo_1I

Because when K and Cl bond, an Ionic bond forms. K will transfers its valence electrons to Cl. If it was a covalent bond, they would share electrons.

Enzo_1I

What is the significance/origin of the negative sign in En= -hR/n2 ?
why is the answer "E infinity = 0 " ? I don't understand how this relates to the origin of the negative sign.

Enzo_1I

Intensity is the amount of photons (light) emitted in the experiment.

Enzo_1I

Why does atomic radii decrease across a period, while ionization increases across a period ?

Enzo_1I

Since you're trying to find the percent yield for this sample, you need to use (actual yield/ theoretical yield ) x 100%. The problem gives you the actual yield (7.84 grams), so you need to find the theoretical yield which should be around 8.11 grams. Then you can just plug in those number into the ...

Enzo_1I

To find the region, you can use the electromagnetic spectrum to determine which wavelength it will fall under.

Enzo_1I

When using the De Broglie Equation to determine if an object has any measurable wavelike properties, at what magnitude is an object's wave considered not having wavelike properties?

CHEMISTRY COMMUNITY

Search found 19 matches

Re: AXE formula

Re: Formal charge purpose

Re: Lewis Structure and Molecular Shape

Molecular geometry vs. shape [ENDORSED]

Bond Angle

Re: Polarizing power

Radicals

Expanded octets

Re: Why don't we find the formal charge of Hydrogen?

Re: OCTET RULE [ENDORSED]

Re: KCl Lewis formula

Re: Bonds

Re: KCl Lewis formula

midterm Q.7b [ENDORSED]

Re: Intensity of Photon

Atomic radii and ionization energy

Re: Test 1 Question 7

Re: 1.33 Part D

Determining measurable wavelike properties