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Author Question: Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The ... (Read 132 times)

123654777

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on: Aug 27, 2018
Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The energy of one photon of this light is ________ J.
 
  A) 1.04  10-31
  B) 3.79  10-28
  C) 3.79  10-19
  D) 1.04  10-22
  E) 2.64  1018

Question 2

What is the formula of the ammonium ion?
 
  A) Am-
  B) Am+
  C) NH4 +
  D) NH4+
  E) N4H+

Question 3

Radioactivity is generally associated with which part of the atom?
 
  A) nucleus
  B) electrons
  C) protons
  D) neutrons
  E) the entire atom


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nyrave

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Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

C

Answer to Question 3

A


123654777

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Reply #2 on: Aug 27, 2018
TY


nyrave

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Reply #3 on: Aug 27, 2018
You're welcome


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