Since electrons in the valence shell are the farthest removed from their nucleus, they experience the least force of attraction to the nucleus. An atom producing such a free electron acquires a net positive charge, because its total number of protons is then one greater than its total number of...Simple Machines. Work is made easy with simple machines; they reduce the force needed to move an object over a distance. This module introduces the six types of simple machines — lever, pulley, wheel and axle, wedge, screw, and inclined plane — as students explore what a simple machine is and how simple machines work.
While having an octet of valence electrons creates an exceptionally deep energy minimum for most atoms, it is only a minimum, not a fundamental requirement. If there are sufficiently strong compensating energy factors, even atoms that strongly prefer octets can form stable compounds with more (or less) than the 8 valence shell electrons. Practice CSIR NET 2021 (Physical Science) Mock Test and CSIR NET (Physical Science) Online Test Series. Complete preparation at an affordable Condensed Matter Physics- Bravais Lattices, Reciprocal lattice, Bonding of Solids, Elastic Properties, Phonons, Lattice specific heat, Free electron...
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