Question

In: Chemistry

Which orbital is an electron in if it has the following quantum numbers: n=3, l=2, ml =-1, ms...

Which orbital is an electron in if it has the following quantum numbers: n=3, l=2, m_l =-1, m_s =-1/2?

		2p
		2s
		3s
		3p
		3d

Which of the following contains an atom that does not obey the octet rule?

		CF₄
		PF₅
		F₂
		NF₃

Explain Boyle's Law in terms of the kinetic molecular theory.

		Decreasing the volume means that at any one instant less molecules will collide with the walls of the container, which increases pressure.
		Decreasing the volume means that there are less gas molecules in the container, which increases pressure.
		Decreasing the volume means that at any one instant more molecules will collide with the walls of the container, which increases pressure.
		Decreasing the volume means that there are more gas molecules in the container, which increases pressure.

List the number of sigma bonds and pi bonds in the best Lewis structure for N ₂.

		3 sigma, 0 pi
		1 sigma, 2 pi
		2 sigma, 1 pi
		1 sigma, 1 pi

What period 3 element is described by the following ionization energies (all in kJ/mol)?

IE₁ = 1012 IE₂ = 1900 IE₃= 18010

		Mg
		Cl
		P
		S
		Si

help, please need answer only

Expert Solution

1.

n= 3 means, it is the 3rd subshell

l = 2 means, "d" orbital

So, the answer is "3d"

2.

In CF₄, both carbon and fluorine has 8 electrons outer shell. So, it follows octet rule.

In PF₅, fluorine has 8 electrons,but phosphorous has 10 electrons in outer shell. So, it does not follow octet rule.

In F₂, fluorine has 8 electrons outer shell. So, it follows octet rule.

In NF₃, both nitrogen and fluorine has 8 electrons outer shell. So, it follows octet rule.

So, answer is "PF₅"

3.

Option-C

"Decreasing the volume means that at any one instant more molecules will collide with the walls of the container, which increases pressure."

Decreasing the volume means, the distance btween the walls of the container has decreased. So, that at any one instant molecules will make more collisions with the walls of the container, which increases pressure.

4.

The answer is "1 sigma, 2 pi"

5.

"P"

Phosphorus has IE₁ = 1012 IE₂ = 1900 IE₃= 18010 in KJ/mol

So, the answer is "P"

queen_honey_blossom answered 2 years ago

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