All categories

3 years ago

What is the highest energy orbital of elements with valence electrons in the n=3 shell?

Chemistry

1 answer:

Andrej [43]3 years ago

8 0

Answer:

d orbital

Explanation:

Given that:-

The principal quantum number, n = 3

The acceptable values of azimuthal quantum number, l are:-

l = 0 , 1 , 2

l = 0 corresponds to s orbital which can accomodate 2 electrons.

l = 1 corresponds to p orbital which can accomodate 6 electrons.

l = 2 corresponds to d orbital which can accomodate 10 electrons.

<u>Thus, the highest energy orbital is: - d orbital</u>

You might be interested in

Intain their own homeostasis?

Klio2033 [76]

Explanation:

In mammals, they maintain their own homeostasis by negative feedback loops within the organism. homeostasis is controlled by the nervous and endocrine systems.

4 0

3 years ago

Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron fallsfrom the n = 7 to the n

Helga [31]

Answer:

λ=2167.6 nm

The wavelength of light emitted is 2167.6 nm.

Explanation:

We recall that Eₙ= $\frac{-2.18*10^{-18} J}{n^{2} }$

since there was transition from n7 to n=4 we will first calculate the change in the energy i.e ΔE

ΔE=E₄-E₇

ΔE= $-2.18*10^{-18} J(\frac{1}{4^{2} } -\frac{1}{7^{2} } )$

ΔE=-9.1760*10^-20 J

Now:

|ΔE|=Energy of photon=h*v=h*c/λ

λ=h*c/|ΔE|

λ= $\frac{6.63*10^{-34}J.s*3.00*10^{8}m/s }{9.1760*10^{-20} J }$

λ=2.1676*10^-6 m

λ=2167.6*10^-9 m

λ=2167.6 nm

The wavelength of light emitted is 2167.6 nm.

5 0

3 years ago

What is a measure of force that is generated by the action of gravity on the mass of an object

Dennis_Churaev [7]

The stronger the pull of gravity the greater the mass

7 0

3 years ago

The modern model of the atom shows that electrons are:

Lina20 [59]

Electrons are orbiting the nucleus in the fxed way paths located in solid sphere

4 0

3 years ago

A 2.5 mg sample of magnesium powder is ignited with 2 mg oxygen in a sealed container. All of the magnesium is consumed and 4.15

lys-0071 [83]

Answer:

Total mass of the reactant = 2+2.5 =4.5 mg

Total mass of product = 4.15 mg

therefore, mass of unreacted oxygen = 4.50-4.15 = 0.35 g

7 0

4 years ago