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Which of the following sequence is correct as per Aufbau principle:
(1) 3s < 3d < 4s < 4p
(2) 1s < 2p < 4s < 3d
(3) 2s < 5s < 4p < 5d
(4) 2s < 2p < 3d < 3p
Ans: 1s < 2p < 4s < 3d
A 64-g sample of germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0 g remain. What is the half-life of this material? 4. With a half-life of 28.8
The atom of the element having atomic number 14 should have: (1) One unpaired electron (2) Two unpaired electrons (3) Three unpaired electrons (4) Four unpaired electr
Which is the most covalent: (1) C- O (2) C- Br (3) C- S (4) C-F A
what is attacking reagent
explanation..
Gold has a molar mass of 197g/mol. How many atoms are in the sample?Please give me procedure also. Ans) molecular wieght of gold is 197 g 1mole/g of molecule is occupies the
Explain the following terms: (a) Asymmetric molecule (b) R and S notations
name an artificial fertilizer or fertilisisers which farmer can use to increase the supply of nitrate,phosphate and potassium to their crops.what are the function of ions?
information of boron element
Applications of photochemistry in day today life
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