Chemistry College

What is the first quantum number of the 3p¹ electron in aluminum,
1s²2s²2p63s²3p¹?

A. n=0
B. n = 1
C. n=3
D. n = 2

Answers

Answer 1

Quantum number of the 3p¹ electron in aluminum is n=3.

What is the quantum number?

Quantum numbers in quantum physics and chemistry explain the values of conserved quantities in a quantum system's dynamics. Quantum numbers are quantities that can be precisely known at the same time as the system's energy and are related to the eigenvalues of operators that commute with the Hamiltonian and their corresponding eigenspaces. A base state of a quantum system is fully described by the specification of all of its quantum numbers, which can theoretically be measured collectively.

The quantization of numerous interesting observable quantities is a crucial component of quantum physics.

This specifically results in quantum numbers, though they may occasionally reach infinity, that take values in discrete sets of integers or half-integers. This sets quantum mechanics apart from conventional mechanics.

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Related Questions

Please help me I really need the help

Answers

Thermal energy is the sum of all the potential and kinetic energy of the atoms within a system that is responsible for its temperature.

How to conclude the Electro negativity?

Friction transforms other forms of energy into thermal energy. Atoms are the building blocks of matter. Atoms are composed of subatomic particles called protons, neutrons, and electrons.Periodic trends are patterns on the periodic table that illustrate elements’ characteristics.Significant trends are atomic radius, metallic reactivity, electronegativity, electron affinity, and ionization energy.

Atomic radius and metallic reactivity trends: They increase when they move down a group and left across a period.Electronegativity, electron affinity, and Ionization energy trends: They increase when they move up a group and right across a period.

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