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The quantum number which may be designated by s, p, d, and f instead of number is: (1) n (2) l (3) m 1
What is the maximum number of electrons which can be accommodated in an atom in which the highest principal quantum number value is 4: (1) 10 (2) 18 (3) 32
what can be understood from the law of multiple proportions?
The maximum number of electrons present in an orbit l= 3 , is: (1) 6 (2) 8 (3) 10 (4) 14 Ans: 14
The difference among Threshold energy and average energy of the molecules is known as activation energy.
The electronic configuration of an element with atomic number 7 i.e. nitrogen atom is; (1) 1s 2 , 2s 1 , 2p 3 x (2) 1s 2 , 2s 2 , 2p 2 x ,
calculate the electrode potential of a platinum electrode immersed in a solution containing Ce4 + ions (cCe4 + = 0.05M) and Ce3 + ions (cCe3 + = 0.1M)
the structure of a periodic table
GROUP 14: TIN AND LEAD Tin and lead give some resemblance to the lighter elements in group 14, especially Ge. Although they are uniquely more metallic in their physical and chem
Covalent Bond Purely electrostatic attractions between ions are nondirectional, but with increasing covalent character the directional properties of valence orbitals become more
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