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.
The following reaction is run in which the initial conditions include only methane (CH4) at a concentration of0.115 M. Once equilibrium was established, the concentration of acetylene (C2H2) was measured to be 0.035M. What is the value of the equilibrium constant, K?2 CH4 (g) ⇋ C2H2 (g) + 3 H2 (g)
Calculate the equilibrium concentration of carbon dioxide for the following reaction:2 COF2 (g) ⇋ CF4 (g) + CO2 (g) Kc = 2.00 at 10.00 °C. at equilibrium [COF2] = 0.255M; [CF4] = 0.118M
In a benzene derivative that has -CH2CH3, indicate how it can be substituted by -COOH.
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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