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JAMB Chemistry 1979 Question 23

Question 23

Periodic Table

Indicate which of the following statements is not true as we move from left to right along the Periodic Table:

  1. A.atomic number of elements increases
  2. B.atomic mass of elements increases
  3. C.electropositive character of elements increases
  4. D.electronegative character of elements increases
  5. E.number of electrons in the outermost orbits of elements increases.
Show the answer and explanation

Answer: C (electropositive character of elements increases)

Explanation

Across a period elements become less metallic: electropositive character decreases while electronegativity increases.