Which quantum number specifies the energy level of an electron? n 1 mi ms If1 =

Question

Which quantum number specifies the energy level of an electron? n 1 mi ms If1 = 3 for an electron, then what type of orbital is that electron in? s p d f g A radio wave has a frequency of 3.6 x 1010 Hz. What is the energy of one photon of this radiation? 2.4 Times 10-23 J 5.4 Times 1043 J 1.8 Times 1 O-44 J 2.4 Times 1 O-23 kJ A species that has one or more unpaired electrons is said to be diamagnetic paramagnetic antimagnetic none of these Which of the following types of electromagnetic radiation is likely to cause cancer? microwaves radio waves visible light uv rays both (c) and (d) Which of the following electron transitions corresponds to absorption of energy? n = 2 to n = 6 n = 2 to n = 1 n = 6 to n = 2

Explanation / Answer

3) a
4)d (0=s , 1=p, 2= d , 3= f)
5) E = hf
E = 6.625*10^-34*3.6*10^10
E = 23.85*10^-24j or 2.4*10^-23 J

so option a is correct

6) option b

7) d
8) a

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