Principle Quantum Number  [ENDORSED]

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William Lan 2l
Posts: 73
Joined: Fri Sep 29, 2017 7:07 am

Principle Quantum Number

Postby William Lan 2l » Sat Oct 21, 2017 4:06 pm

What exactly is the principle quantum number? I'm not fully understanding the concept.

Lena Nguyen 2H
Posts: 51
Joined: Fri Sep 29, 2017 7:06 am
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Re: Principle Quantum Number  [ENDORSED]

Postby Lena Nguyen 2H » Sat Oct 21, 2017 4:32 pm

The principle quantum number is the energy level of the electron, denoted by n (which is the same n as in the Rydberg Equation). If the energy level goes up, n also goes up.

Nhan Nguyen 2F
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Joined: Thu Jul 13, 2017 3:00 am
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Re: Principle Quantum Number

Postby Nhan Nguyen 2F » Sat Oct 21, 2017 10:17 pm

Hi,
The principle quantum number (n) is what determines the size of an orbital. Based on my understanding, more energy is needed to be absorbed to excite an electron from the orbital that is closer to the nucleus (n=1) to a farther orbital (n=2). Thus, orbitals for which n=2 is larger than n=1 because it's in a higher energy level.

Ashin_Jose_1H
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

Re: Principle Quantum Number

Postby Ashin_Jose_1H » Sat Oct 21, 2017 10:29 pm

Hey,

The principal quantum number is one of the four quantum number often denoted as n. The principal quantum number is used to describe the energy and size (shell).


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