Q27 of 70 Page 109

Which of the following lanthanoids show +2 oxidation state besides the characteristic oxidation state +3 of lanthanoids?

Electronic configurations of Eu and Yb are

Eu- [Xe] 4f⁷ 5d⁰ 6s²

Yb- [Xe] 4f¹⁴ 5d⁰ 6s²

Both show oxidation state of +2 besides the +3 oxidation state

Which of the following actinoids show oxidation states upto +7?

General electronic configuration of actinoids is (n–2)f^1–14 (n-1)d^0–2 ns².Which of the following actinoids have one electron in 6d orbital?

Which of the following ions show higher spin only magnetic moment value?

Transition elements form binary compounds with halogens. Which of the following elements will form MF₃ type compounds?