All categories

4 years ago

Find the values of n, l, m, and s for the 9th electron

Chemistry

1 answer:

Oduvanchick [21]4 years ago

6 0

Answer:

The values of all four quantum number for 9th electron are:

n = 2

l = 1

m = 3

s = + 1/2

Explanation:

There are four quantum numbers:

Principal quantum number (n)

Azimuthal quantum number (l)

Magnetic quantum number (ml)

Spin quantum number (ms)

All these four quantum numbers gives complete information about an electron like its spin, shells, subshells and orbitals.

For example:

The all four quantum values for 9th electron are:

It is the last electron of fluorine;

F₉ = 1s², 2s², 2p⁵

The last 9th electron is in second orbital the principle quantum number will be 2.

Azimuthal quantum number (l)

The azimuthal quantum number describe the shape of orbitals. its value foe s, p, d, f... are 0, 1, 2, 3. For 9th electron its value will be (n-1) 1.

Magnetic quantum number (ml)

It describe the orientation of orbitals. Its values are -l to +l. For l=1 the ml will be -1 ,0,+1.

Spin quantum number (ms)

The spin quantum number tells the spin of electron either its clock wise (+1/2) or anti clock wise (-1/2).

For last electron of fluorine spin quantum number will be

+1/2 because it occupy full empty 2Pz. If 10th electron will added then its spin will be -1/2.

You might be interested in

A mixture of N2, O2, and Ar has mole fractions of 0.25, 0.65, and 0.10, respectively. What is the pressure of N2 if the total pr

s344n2d4d5 [400]

Answer:

Partial pressure of nitrogen gas is 0.98 bar.

Explanation:

According to the Dalton's law, the total pressure of the gas is equal to the sum of the partial pressure of the mixture of gases.

$P=p_{N_2}+p_{O_2}+p_{Ar}$

$p_{N_2}=P\times \chi_{N_2}$

$p_{O_2}=P\times \chi_{O_2}$

$p_{Ar}=P\times \chi_{Ar}$

where,

$P$ = total pressure = 3.9 bar

$p_{N_2}$ = partial pressure of nitrogen gas

$p_{O_2}$ = partial pressure of oxygen gas

$p_{Ar}$ = partial pressure of argon gases

$\chi_{N_2}$ = Mole fraction of nitrogen gas = 0.25

$\chi_{O_2}$ = Mole fraction of oxygen gas = 0.65

$\chi_{Ar}$ = Mole fraction of argon gases = 0.10

Partial pressure of nitrogen gas :

$p_{N_2}=P\times \chi_{N_2}=3.9 bar\times 0.25 =0.98 bar$

Partial pressure of oxygen gas :

$p_{N_2}=P\times \chi_{O_2}=3.9 bar\times 0.65=2.54 bar$

Partial pressure of argon gas :

$p_{N_2}=P\times \chi_{Ar}=3.9 bar\times 0.10=0.39 bar$

7 0

4 years ago

what is the molarity of a solution prepared by dissolving 317 g of enough water to make 2.50 L of solution MW of CaCl2 = 110.98

lianna [129]

Answer:1.14 M

Explanation:

8 0

4 years ago

Solids, liquids, and gases are the three most commonly accepted phases of matter. Explain the properties of each phase, includin

nasty-shy [4]

Answer:

Solid state : In this state, the molecules are arranged in regular and repeating pattern. The molecules are closely packed that means they are fixed and vibrate in place but they can not move from one place to another. They have least kinetic energy. For example : chair

Liquid state : In this state, the molecules are present in random and irregular pattern. The molecules are closely packed but they can move from one place to another. They have more kinetic energy than solids but less than that of gases. For example : oil

Gaseous state : In this state, the molecules are present in irregular pattern. The molecules are not closely packed and they can move freely from one place to another and spread out. They have most kinetic energy. For example : Hydrogen

4 0

3 years ago

What is the polarity for the shown molecule

mafiozo [28]

Answer:

polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.

7 0

3 years ago

In general, which attractions are stronger: intermolecular or intramolecular? Research and explain a quantitative comparison bet

murzikaleks [220]

Answer is: intramolecular attractions are stronger.

Intramolecular attractions are the forces between atoms in molecule.

There are several types of intramolecular forces: covalent bonds, ionic bonds.

Intermolecular forces are the forces between molecules. The stronger are intermolecular forces, the higher is boiling point of compound, because more energy is needed to break interaction between molecules.

There are several types of intermolecular forces: hydrogen bonding, ion-induced dipole forces, ion-dipole forces andvan der Waals forces.

Hydrogen bonds are approximately 5% of the bond strength of covalent C-C or C-H bonds.

Hydrogen bonds strength in water is approximately 20 kJ/mol, strenght of carbon-carbon bond is approximately 350 kJ/mol and strengh of carbon-hydrogen bond is approximately 340 kJ/mol.

20 kJ/350 kJ = 0.057 = 5.7 %.

8 0

4 years ago