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The principal quantum number (n) represents the main energy level of an electron in an atom. It determines the energy level and distance of the electron from the nucleus.

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What is the first quantum number of a 1s2 electron in phosphorus?

The first quantum number (n) represents the energy level (shell), so for a 1s2 electron, it would have a value of 1.


what does the quantum number n describe?

Which orbital is being occupied ^^^^ WRONG UPDATE 1/12/16: APEX ANSWER IS The energy level of the electron.


What does the first quantum number (n) describe?

Which orbital is being occupied ^^^^ WRONG UPDATE 1/12/16: APEX ANSWER IS The energy level of the electron.


What information does the first quantum number of an electron give?

The energy level the electron is in


In many-electron atoms which quantum numbers specify the energy of an electron?

the quantum number n determines the energy of an electron in a hyrdogen atom.


What did Bohr label in his atomic model by a quantum number?

In Niels Bohr's atomic model, he labeled a quantum number to describe the energy levels of electrons orbiting the nucleus. He called this quantum number "n," which represents the principal quantum number and determines the energy and size of the electron's orbit.


What is the first quantum number of a 2s2 electron in phosphorus?

The first quantum number of a 2s electron in phosphorus is the principal quantum number, which specifies the energy level of the electron shell. For a 2s electron, the principal quantum number is 2.


How is the principal quantum number symbolized?

The principal quantum number is symbolized as "n" in the context of quantum mechanics. It represents the energy level of an electron in an atom and determines the average distance of the electron from the nucleus.


What information does the first quantum of an electron give?

The energy level the electron is in


What is the first quantum number of a 2s2 electron in phosphorus 1s22s22p63s23p3?

n = 2


What is the first quantum number of a 1s2 electron in phosphorus 1s22s22p63s23p3?

n=1


What phrases describes how the position of an electron relates to its energy?

The farther an electron is from the nucleus, the greater its energy.