Which elements shows -2 oxidaion state?

The figure of an incomplete periodic table is given below. : Which one of these elements show -2 oxidation state?

The element‘X’ has 4 shells, and its3d sub-shell has6 electrons.(Symbol is not real): From which subshell the electrons are lost when the element X shows +2 oxi-dationstate

Analyse the given subshell electronic configurations and answer the questions (Symbols are not real) A - [Ne] 3s^2 3p^2 B - [Ne] 3s^2 C - [Ar] 4s^1 D - [Ar] 4s^2 3d^2 a. Which element has higher electronegativity? b. Which element shows various oxidation states? c. Write the total number of p electrons in the element C. d. Which element has ionization energy?

The figure of an incomplete periodic table is given below. Which of these elements show variable oxidation state?

The outer most subshell electronic configuration of an element is 3d^(5)4s^2 . (d) This element shows variable oxidation state. Why?

Two compounds of iron are given below. FeSO_4 Fe_2(SO_4)_3 (The oxidation state of sulphate radical is -2): Why do transition elements show vari-able oxidation states?

Write the reason for the statement given below: Transition elements shows variable oxidation state.

Transition elements show variable oxidation state. a) Do you agree with, this statement? b) Illustrate with an example

Transition elements show various oxidation states and many of the transition metal Ions are attracted by a magnetic field. Name the two types of magnetic behaviour.

When the element Fe with atomic number 26 undergo chemical reactions, ions with +3 oxidation state are formed. a) Write the subshell electronic configuration of Fe. b) Write the subshell electronic configuration of the ions formed during chemical reactions. c) Does the element show various oxidation states. Why?