What is the orbital radius of the excited state in the Bohr model ...

[Themember4]

What is the orbital radius of the excited state in the Bohr model of the hydrogen atom? The ground-state radius of the hydrogen atom is 0.529  10-10 m.
 
  A) 0.477 nm
  B) 0.159 nm
  C) 0.382 nm
  D) 0.549 nm

Question 2

-rays of energy 2.9  104 eV are scattered by a free stationary electron through an angle of 135. What is the energy of the scattered X-rays, in electron volts?
 
  (mel = 9.11  10-31 kg,
  e = - 1.60  10-19 C, h = 6.626  10-34 J  s, c = 3

[stano32]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: 2.6  104 eV

[Themember4]

TYSM

[xoxo123]

Thanks for the timely response, appreciate it