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The atomic number of an element is 35 and mass number is 81. The number of electrons in the outer most shell is:
(1) 7
(2) 6
(3) 5
(4) 3
Ans: 7
mention the basic tendency of an atom which makes it to combine with other atoms.
example of chemical reaction
Which chromium plating is more eco-friendly - trivalent or Hexavalent? Justify your answer in the light of environmental issues caused.
Q. Beneficiation of Ores? Most of the ores available in nature contain large amounts of impurities, i.e. gangue. Direct extraction of metals from the ores by metallurgical proc
Liquid propellants - Monopropellants and Bipropellants These contain an oxidizer like liquid oxygen, nitrogen tetroxide (N 2 O 2 ) or nitric acid and a fuel for example alcohol
Draw temperature composition phase diagram for binary System? Use the following information to draw a temperature-composition phase diagram for the binary system of H 2 O (A) a
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How many unpaired electrons are present in cobalt [Co] metal: (1) 2 (2) 3 (3) 4 (4) 7 Ans: 3
explain why Ni(co)4 is known while Ca(co)4 is not known
Isomers, which vary in the orientation of groups around the double bounded carbon atoms, are known as geometrical Isomers. It is also known as Cis-Trans Isomerism.
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