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The table below gives the atomic numbers of elements W, X, Y and Z. The letters do not represent the actual symbols of the elements.

      

The table below gives the atomic numbers of elements W, X, Y and Z. The letters do not represent the actual symbols of the elements.
Letters472017339.jpg
a) Which one of the elements is least reactive? Explain.
b) (i) Which two elements would react most vigorously with each other?
(ii) Give the formula of the compound formed when the elements in b (i) react.

  

Answers


John
a) X is least reactive. The outer energy level is full.

b) (i) W and Y

ii) YW
johnmulu answered the question on April 7, 2017 at 12:41


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