The elements chromium (Cr) and zinc (Zn) are in period four of the periodic table. Which characteristic of zinc and chromium is correct
based on their positions?

*Zinc has a greater atomic radius than chromium.

*Zinc loses electrons more easily than chromium.

*Chromium has more valence electrons than zinc.

*Chromium has lower ionization energy than zinc.

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box