Label each half cell in this diagram of a voltaic cell to identify which electrode it contains and the process occurring at the electrode. anode
cathode
reduction
oxidation

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?