How do you prepare 500 ml of a 1.77 M H2SO4 solution from an 18.0 M H2SO4 stock solution?

Organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts