Answer:
B.<em>h</em><em>u</em><em>b</em><em>b</em><em>l</em><em>e</em><em> </em><em>s</em><em>p</em><em>a</em><em>c</em><em>e</em><em> </em><em>t</em><em>e</em><em>l</em><em>e</em><em>s</em><em>c</em><em>o</em><em>p</em><em>e</em>
Answer: I would do a.
Explanation: Then both customers would be happy. I'm pretty sure that is how this works.
Answer:
the element must be in the fifth, sixth, or seventh energy shells.
Explanation:
Because the first ionization energy is less than calcium's, the element must be larger and in the next energy shell. Calcium is in the fourth energy shell, so the element must be in the fifth, sixth, or seventh energy shells.