The ion has eight valence electrons. the ion has eight valence electrons. cr6+ ni6+ fe6+ co6+ mn6+

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

Which element is least likely to undergo a chemical reaction

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!