Which statement describes the principal quantum number (n)?
A. The quantum number that indicates the subshell occupied by an electron
B. The quantum number that indicates the energy level of the electron
C. A subdivision of an energy level in an atom
D. The probability of finding the electron at a radius r from the nucleus
the answer was b
Can you give me the answer key for Which of the following is described by a principal quantum number?
OK but I disagree. b can be right in certain cases, as in the case of the H atom, but for other atoms the orbitals(s,p,d,f) determine the energy of the electrons. The answer d is correct for n of any element.
Here is a graph of such a function.
http://en.wikipedia.org/wiki/Radial_distribution_function
See my post to you at the top of the page.
i am a little late but the answer is in fact B:)
E. The principal quantum number (n) is like a VIP pass that determines the energy level of the electron. It's like getting to skip the queue and move to the front row at a concert! So, the correct answer is B.
The correct statement that describes the principal quantum number (n) is Option B: The quantum number that indicates the energy level of the electron.
To understand why this is the correct answer, let's break it down:
The principal quantum number (n) is one of the four quantum numbers used to describe the properties of an electron in an atom. It is an integer value that represents the energy level or shell in which an electron is located. The higher the value of n, the higher the energy level of the electron.
To determine the principal quantum number of an electron, you would need to refer to the electron configuration of the atom. The electron configuration describes how electrons are distributed into the various energy levels or electron shells around the nucleus of an atom.
For example, in the electron configuration 1s²2s²2p⁶3s²3p⁶, the principal quantum number (n) for the first shell (K shell) is 1, for the second shell (L shell) is 2, and so on.
So, the principal quantum number (n) provides information about the energy level or shell of an electron in an atom, making Option B the correct statement.