Question 2116
Which of the following is the 4d series of transition metals?
Question 2117
What is the correct position of the f-block elements in the periodic table?
Question 2118
What is the correct position of the d-block elements in the periodic table?
Question 2119
Which of the following is NOT an f-block element?
Question 2120
Which of the following is NOT a d-block element?