Select the best answer for the question. 11. An ionic compound contains a single metal cation and a single non-metal atom. What's the structure of this molecule? Is this
molecule polar or non-polar?
A. Trigonal planar, polar
B. Trigonal planar, non-polar
C. Linear, polar
D. Linear, non-polar

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Which element is the least metallic between cadmium, silver, zinc, or iron?

Find the missing probability in the table below a.0.10 b.40 c.0.80 d. 0.20