Electron X can change to a higher energy level or a lower energy level. Which statement is true of electron X? 1
Electron X emits energy when it changes to a higher energy level.
2
Electron X absorbs energy when it changes to a higher energy level.
3
Electron X absorbs energy when it changes to a lower energy level.
4.
Electron X neither emits nor absorbs energy when it changes energy level.

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia