plese give information on the topic " trends in stability of higher oxidation states of transiition elements"
Kindly refer to the following links:
https://www.meritnation.com/ask-answer/question/4d-and-5d-series-metals-generally-do-not-form-stable-cationi/the-d-and-f-block-elements/7037886
https://www.meritnation.com/ask-answer/question/to-what-extent-do-the-electronic-configurations-decide-the/the-d-and-f-block-elements/6303333
https://www.meritnation.com/ask-answer/question/4d-and-5d-series-metals-generally-do-not-form-stable-cationi/the-d-and-f-block-elements/7037886
https://www.meritnation.com/ask-answer/question/to-what-extent-do-the-electronic-configurations-decide-the/the-d-and-f-block-elements/6303333