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For the energy levels in an atom, which one of the following statements is correct:
(1) There are seven principal electron energy levels
(2) The second principal energy level can have four sub-energy levels and contains a maximum of eight electrons
(3) The energy level can have maximum of 32 electrons
(4) The sub-energy level is at a higher energy than the sub-energy level
Ans: The second principal energy level can have four sub-energy levels and contains a maximum of eight electrons
Aufbau principle is not satisfied by: (1) Cr and Cl (2) Cu and Ag (3) Cr and Mg (4) Cu and Na Ans: Cu and Ag
similarities between the latter actinides and latter lanthanides
solution manual
For the dumb-bell shaped orbital, the value of l is: (1) 3 (2) 1 (3) 0 (4) 2 Ans: 1
Borazole is very stable because it is aromatic; each nitrogen contributes two p electrons and each boron contributes zero electrons, for a total of six p electrons in the aromatic
Q. Write an account of soda lime glass and safety glasses. Ans. Soda-Lime Glass or soft glass: It is the ordinary glass in which Na 2 O is added to the melt to oxide on hea
Formic acid is a weak acid along with a pKa of 3.75. The name comes by the Latin term "formica" ("ant") since this is very plentiful into the secretions of several species of ants,
give the mechanism of additin of HCN to acetaldehyde?????
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Q. Differentiate the thermoplastic and thermo sets. OR Write note on thermoplastic and thermosetting plastic resins. Ans. T
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