Question

PLEASE HELP FAST! A p sublevel is represented by the quantum number (2 points) m subscript l = 1 m subscript l = 2 l = 1 l = 2

Answer 1

`l = 1`.

Step-by-step explanation

Each electron in an atom comes with a unique set of four quantum numbers.

• 
  `n` gives the main shell of an electron.
• 
  `l` gives the type of the sub-level (a.k.a. orbital, s, p, d, f, ...) that the electron occupies.
• There can be more than one orbitals in a sub-level. Consider
  `m_l` as the index for the electron's orbital.
• Each orbital holds two electrons.
  `m_s` tells those two electrons apart based on the direction of each electron's spin.

The question is asking about different types of sub-levels. That depends on the angular / azimuthal quantum number,
`l`.

`l` is an integer. It ranges from
`0` all the way to
`n - 1`.

• An electron with
  `l = 0` is in an
  `s` orbital.
• An electron with
  `l = 1` is in a
  `p` orbital.
• An electron with
  `l = 2` is in a
  `d` orbital.

In other words, the quantum number
`l= 1` represents a
`p` sublevel.

Reference

Vitz, Ed et al. "Quantum Numbers (Electronic)", ChemPRIME (Moore et al.). Chemistry Libretexts.

"Quantum Mechanics and Atomic Orbitals", Chemistry - The Central Science (Brown et al.). Chemistry Libretexts.