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Q. Explain the structure of Single covalent bonds?
Ans.
Atoms tend to achieve the stable electron configuration of a noble gas when forming a bond. In covalent bonding this is done by electron sharing.
Here are the electron dot diagrams for the hydrogen (H2) and chlorine (Cl2) molecules:
The electron dot structure for the hydrogen molecule shows how the two hydrogen atoms share their electrons to achieve the electron structure of helium. Note the electron pair that is being shared.
Similarly, two chlorine atoms can each share one unpaired electron from their outermost shells. A shared electron pair results. Note in the diagram that both chlorine atoms now have an octet of electrons. Therefore, each chlorine has now become like the noble gas argon.
Which of the following has maximum number of unpaired electron (atomic number of Fe 26): (1) Fe (2) Fe (II) (3) Fe (III) (4) Fe (IV) An
positive standard electrode potential and negetive standard electrod potential
Calculate the expected enthalpy of hydrogenation of a six-membered ring with three double bonds and compare it with the value obtained in 74.1. What is the reason for this diffe
Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, w
The electronic configuration of four elements L,Q, P, and R are given in brackets: L ( 1s 2 , 2s 2 , 2p 4 ) Q (1s 2 , 2s 2 , 2p 6 , 3s 2 ,3p 5 ) P ( 1s 2 , 2s 2 2p
Equivalent weigjt of potash alum
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Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe
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