Chemical Bonding & Valency | CHEMISTRY FOR RAILWAY EXAM | GENERAL SCIENCE IN BENGALI FOR RAILWAY

Published: Aug 30, 2024 Duration: 01:00:10 Category: Education

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J friends welcome to edas Academy chemistry bonding and valenc fundamental conceptual class seriously time exact time EX opportunity clear this is the right time to start your preparation right now [Applause] otherwise clearing total full clearing C recorded version EX previous year question solution important previous year question solution stud clear next Bing and chemical bond chemical bond Bond what is Bond B chemical bond but bond is nothing bond is nothing but this is a force of attraction force of attraction chemistry atline Bond attractive Force bond is nothing but this is attractive Force attractive El What isical bondic bond is force of attraction of between two or to hold them together as a stable molecule stable molecule forp El St next of two or more atoms involving redistribution of electrons among them St form exic process ex clear within the decrease of free energy comp total energy of the combination has lower energy than the separated atoms clear next oftion to the strength of the bond exm process exoic process exic process [Applause] yes n more stable n is more stable Str but that's to strength of the bondar therefore molecules are more stable than atom ATS are more stable than molecule but molecules are more stable than atom but the atoms and molecules have the same stability ch MO Moes are more stable than atom molecules are more stable than at molecules the bond State implies a net attractive force between the atoms attractive many types of bonda of chemical comination chemical combination chemical combination that means bond form chemical combination that means bond form tendy to AC minimum energy when two atoms approaches to each other nucleus of one atom attracts the electron of another atom positive example sodi atline at C that means nuc of one at attracts the elect of other at El rep is final so attraction proportionate to one by energy proportionate to stability proportionate to one by energy to stability that means attraction prop EX to anmation is an exothermic process correct or wrong yes sir correct bond form energy relase second tendency to acquire noble gas configuration at [Applause] no for s combines to AC no gas next only outermost electron participate in bond formation bond form El only outermost El partipate in form clear in gas element do not participate already minimum energy clear at molecule at at in moleular moleular bond int molecular Bond clear int molecular Bond inter molecular Bond intra in cular MO Bond weak [Applause] B important bonds hydren Bond V bonds what is what Val number and sodi 11 at number 11 number 11 El El or capacity capacity bond form capacity Bond Val combin com [Applause] t gas they generally do not take part in chemical bonding because they have completed field very stable OU El [Applause] for for for equ [Applause] C 8 minus valence min clear that means sodium chloride n form reaction [Applause] nit nit n nitr at number nitrogen hyrogen helium lithium nit for Lo sorry Chlor at number 17l number 17 m 8 - 7 = 1 magnesi value number Val for BS number of Val El numberly stable means next first period second period third period fourth period fifth six seventh period 1 2 3 second group third group first increase then decrease clear hyren lithium sodium potassium rid next clear to time exact time but right time C C or t

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