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Ions which have the same electronic configuration are those of:
(1) Lithium and sodium
(2) Sodium and potassium
(3) Potassium and calcium
(4) Oxygen and chlorine
Ans: Potassium and calcium
CARBON, SILICON AND GERMANIUM With the valence electron configuration s 2 p 2 the nonmetallic group of elements 14 may form compounds with four tetrahedrally directed covalent
define pi acid ligand
Biodegradable polymers These are the polymers that are degraded through micro-organisms in an appropriate period so that biodegradable polymers and their degraded products do n
Which statement is not correct for n=5, m=3: (1) l=4 (2) l=0, 1.3, s =+1/2 (3) l= 3 (4) All are correct Ans:l=4
Illustrate how a high initial permeability in Fe-Ni alloys helps to reduce the area under hysteresis loop. The most favourably oriented fully-grown domain tends to rotate so a
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in castner kelnar process sodium metal extract at cathode and calcium also why they do not mix if they extract at same chamber?
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what element is not grouped with others in a family? what is its usual atomic structure?
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