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The four quantum numbers of the outermost orbital of K (atomic no. =19) are:
(1) n= 2, l= 0, m=0, s= +1/2
(2) n= 4, l= 0, m=0, s= +1/2
(3) n= 3, l= 1, m=1, s= +1/2
(4)n= 4, l= 2, m=-1 s= +1/2
Ans: n= 4, l= 0, m=0, s= +1/2
When an electron revolves in a stationary orbit then: (1) It absorbs energy (2) It emits radiation (3) Its energy remains constant (4 )It gains kinetic energy Ans:
Li + H20 ----> LiOH + H2....if I start with 3.4 mols of H2O , how many mols of H2 can I make?
Classification based upon molecular forces: Depending on the intermolecular forces, the polymers have been categorized into four types. (a) Elastomers (b) Fi
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20.0 mL of 0.2 M CaCl 2 diluted with water to 100.0 mL. Calculate [CaCl 2 ], [Ca 2+ ] and [Cl - ]. Produce from concentrated hydrochloric acid (12 M) 3.0 L 0.60 M HCl solution.
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a) The Strength of ionic bond b) Stability of the Ionic compound c) Ease of formation of the Ionic bond enhances
Ionic bonds are usually formed by combination of elements with: (1) High ionisation potential and low electron affinity (2) Low ionisation potential and high electron affini
WHAT IS MEANT BY QUANTUM?
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