Question 2111
To which block do elements with progressively filled 5f orbitals belong?
Question 2112
To which block do elements with progressively filled 4f orbitals belong?
Question 2113
Which series of elements is known as the actinoids?
Question 2114
Which series of elements is known as the lanthanoids?
Question 2115
Which of the following is the 5d series of transition metals?