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The four quantum numbers of the valence electron of potassium are : (1) 4, 1, 0 and 1/2 (2) 4, 0, 1 and 1/2 (3) 4, 0, 0 and +1/2 (4) 4, 1, 1 and 1/
what groups comprise each block of elements in the periodic table?
why does the sulphur has three different valency
Q. What is scientific law and theory? A theory is a description that has been supported by many experiments. Theories declare broad principles of nature. Even though theories a
Show that wavefunction ψ1(x) = (2/L) 1/2 sin(πx/L) of a particle in a box is an eigenfunction of the operator d 2 /dx 2 and also calculate the corresponding eigenvalue.
Which of the following is an incorrect representation for a neutral atom: 108/47Ag 63/30Cu 30/15P 13/6C 6/3Li
Q. Ca +2 = 20 ppm, Mg +2 = 25 ppm, CO 2 = 30 ppm, HCO - 3 = 150, K + = 10 ppm. Calculate the lime (87% pure) and soda (91% pure) required softening 1 million litt
Q. Name the Oxide Minerals? These minerals consist of oxides of metals, which are formed either by oxidation of sulphide minerals or by direct oxidation of metals. Highly elect
What are the different mechanism to produce methanol(CH3OH)?
calculate the surface coverage obtained after exposure to a pressure of 10 torr of CO for 20s at 300K. sticking probability of CO is 0.9
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