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Author Question: What is the formula for the ionic compound formed between calcium and sulfur? A) CaS B) CaSi C) ... (Read 37 times)

luvbio

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on: Aug 27, 2018
What is the formula for the ionic compound formed between calcium and sulfur?
 
  A) CaS
  B) CaSi
  C) Ca2S
  D) CaS2
  E) CaSi2

Question 2

For hydrogen, what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2p orbital in a hydrogen atom?
 
  A) 656.3 nm
  B) 486.2 nm
  C) 364.6 nm
  D) 2.057  10-3 nm


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joechoochoy

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

A

Answer to Question 2

B


luvbio

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Reply 2 on: Aug 27, 2018
Excellent

Joy Chen

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Reply 3 on: Yesterday
Wow, this really help

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