Chlorine has an atomic number of 17 and argon has an atomic number of 18.?

Question

From this information alone, you can predict that
A) argon has more neutrons than chlorine.
B) argon is more chemically reactive than chlorine.
C) argon will more readily ionize than chlorine.
D) chlorine is more chemically reactive than argon.
E) chlorine has more neutrons than argon.

Answer 1

A) False. There could be isotopes of either argon or chlorine that would make both have equal numbers of neutrons. Argon - 17 is an isotope of argon that has the same number of neutrons as Chlorine - 17.
B) False. Argon is a Noble Gas which means it is inert (highly non-reactive).
C) False. Again, argon is a Noble Gas - it does not have a strong tendency to lose electrons while Chlorine has a very strong tendency to ionize.
D) True - Chlorine is a halogen and is highly reactive.
E) False - See (A).

Answer 2

a) is false
B) false; argon shows no chemical ractivity
c)No argon has a very stable electronic configuration
d) chlorine is very reactive chemically
E) false