Is kg/ m3 is a derived unit ??​

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?