What element’s valence electrons are located in 4s24p3?

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-

Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water