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The electronic configuration of an element is 1s 2 , 2s 2 2p 6 3s 2 3p 6 3d 5 4s 1 . This represents its: (1) Excited state (2) Ground state (3)Cationic for
Discuss the topic
uses of light waves in chemical areas
The number of unpaired electrons in an O 2 molecule is: (1) 0 (2) 1 (3) 2 (4) 3 Ans: 2
What is heat atomisatin? Solution : Heat of atomisation or enthalpy of atomisation is the energy required to dissociate one mole of a given substance into atoms.
Close to 12.2 billion metric tons of ethylene glycol (EG) were produced in 2000, which ranked it the twenty-sixth most produced chemical in the nation that year on a total mass bas
The following cell is used for measuring the partial pressure of oxygen at 700 o C. (Pt) Cu 2 Cu 2 0 / 0.85 ZrO 2 - 0.l5 CaO / O 2 (Pt) Knowing that conduction through the
What do you understand by Miller indices of a crystal plane? Miller Indices are a symbolic vector representation for the orientation of an atomic plane in a crystal lattice an
If you have 250 mL of 2 M sodium sulfate diluted to make 0.500 M of sodium sulfate, how would you figure out the volume?
Describe why shielding is more effective by electrons in a shell of lower principle quantum number than by electrons having the similar principle quantum number.
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