A part of the periodic table is shown. Which of the following elements is less reactive than the others? Beryllium (Be) Calcium (Ca) Lithium (Li) Magnesium (Mg)

One or more substances changing into one or more substances is an example of a

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors

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!