The reason for the number of elements in the successive periods of the periodic table to be increased in progression 2, 8, 18, 32 needs to be explained. Concept introduction: An atom consists of three sub-atomic particles; electrons, protons and neutrons. The Bohr’s model purposed the concept of energy levels around the nucleus. It was first most accepted atomic model. The quantum mechanical model is based on certain concepts like quantum numbers, Heisenberg uncertainty principle, etc. Quantum numbers are used to indicate the position and energy of an electron in an atom in a certain energy level. Electrons in an atom in certain energy levels called orbitals. The position, energy and spin of electrons are explained with the help of four quantum numbers.
The reason for the number of elements in the successive periods of the periodic table to be increased in progression 2, 8, 18, 32 needs to be explained. Concept introduction: An atom consists of three sub-atomic particles; electrons, protons and neutrons. The Bohr’s model purposed the concept of energy levels around the nucleus. It was first most accepted atomic model. The quantum mechanical model is based on certain concepts like quantum numbers, Heisenberg uncertainty principle, etc. Quantum numbers are used to indicate the position and energy of an electron in an atom in a certain energy level. Electrons in an atom in certain energy levels called orbitals. The position, energy and spin of electrons are explained with the help of four quantum numbers.
Solution Summary: The author explains how the number of elements in the periodic table increases in progression 2, 8, 18, 32. The quantum mechanical model is based on quantum numbers, Heisenberg uncertainty principle, etc.
The reason for the number of elements in the successive periods of the periodic table to be increased in progression 2, 8, 18, 32 needs to be explained.
Concept introduction:
An atom consists of three sub-atomic particles; electrons, protons and neutrons. The Bohr’s model purposed the concept of energy levels around the nucleus. It was first most accepted atomic model. The quantum mechanical model is based on certain concepts like quantum numbers, Heisenberg uncertainty principle, etc.
Quantum numbers are used to indicate the position and energy of an electron in an atom in a certain energy level. Electrons in an atom in certain energy levels called orbitals. The position, energy and spin of electrons are explained with the help of four quantum numbers.
Synthesis of 1-metilbenzotriazole from 1,2-diaminobenceno.
Synthesis of 1-metilbenzotriazole.
Indicate the formula of the compound, that is the result of the N-
alquilación (nucleofílic substitution), in which an additional lateral
chain was formed (NH-CH2-COOMe).
F3C.
CF3
NH
NH2
Br о
OMe
K2CO3, DABCO, DMF
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Quantum Numbers, Atomic Orbitals, and Electron Configurations; Author: Professor Dave Explains;https://www.youtube.com/watch?v=Aoi4j8es4gQ;License: Standard YouTube License, CC-BY