1.

5) 13.0085. The speed of an electron in the inner mosorbit of the hydrogen (Bohr radius:52.9 pm; m = 9.11 x 10-31 kg) is1) 2.19 x 104 m.s- 2) 2.19 x 106 m.s-!3) 2.19 x 107 m.s-! 4) 2.19 x 108 m.s-1

Answer»

answer 4 is right

2.19×10^8

calculate) is thehydrogen atomwhich is in all our water. A calculation shows that theelectronis traveling at about 2,200 kilometers per second. That's less than 1% of thespeedof light, but it's fast enough to get it around the Earth in just over 18 seconds.

2.19*10'8 is a right answer



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