Which statement describes the process during which an electron in an atom emits light?

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves

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