Which of the following is the electron configuration of an electrically neutral atom of argon (ar)? (a) 1s² 2s² 2p5 (b) 1s² 3d¹⁰ 4f⁷ (c) 1s² 2s² 2p⁶ 3s² 3s⁶ (d) 1s² 2s1

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.