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Author Question: What is the metal ion in the porphyrin of heme? A) iron B) calcium C) molybdenum D) magnesium ... (Read 227 times)

mynx

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on: Aug 27, 2018
What is the metal ion in the porphyrin of heme?
 
  A) iron
  B) calcium
  C) molybdenum
  D) magnesium
  E) chlorophyll

Question 2

The modern periodic law states that the properties of the elements repeat when the periodic table is arranged according to which of the following?
 
  A) increasing atomic number
  B) increasing mass number
  C) increasing atomic mass
  D) increasing isotopic mass
  E) none of the above


cloudre37

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

A

Answer to Question 2

A


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