Multiple choice

Which of the following elements have completely filled 5d orbital? P. Silver Q. Cadmium R. Gold S. Mercury Select the correct answer using codes given below:

  1. P and Q

  2. P and R

  3. Q and R

  4. Q and S

  5. R and S
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Both gold and mercury have completely filled 5d orbital. Gold (79Au): [Xe] 5d10 6s1 Mercury (80Hg): [Xe] 5d10 6s2

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