Which element does NOT have similar chemical properties to neon (Ne)?

a F
b Xe
c He
d Ar

I beg to differ. Ne, Xe, He and Ar are all noble gases, and chemically inert.

Fluorine is about as far from that as possible.

Sorry, oobleck is correct. I did not read carefully.

To determine which element does NOT have similar chemical properties to neon (Ne), we need to compare the elements and identify any differences in their properties.

Neon belongs to the noble gas group in the periodic table, which is known for being inert and having low reactivity. It has a completely filled valence electron shell, consisting of eight electrons. Therefore, we need to look for an element that does not share these characteristics.

a) F (Fluorine) - Fluorine is not the correct answer because it belongs to the halogen group, which is highly reactive and has a strong tendency to gain one electron to achieve a full outer electron shell. This shows that fluorine has significantly different chemical properties compared to neon.

b) Xe (Xenon) - Xenon is also a noble gas, just like neon. It has similar chemical properties to neon and shares characteristics such as low reactivity. Therefore, xenon is not the correct answer.

c) He (Helium) - Helium is another noble gas and, like neon, it has low reactivity. Helium has similar chemical properties to neon, so this is not the correct answer.

d) Ar (Argon) - Argon, like neon, belongs to the noble gas group, which makes it another inert and low reactive gas. It has similar chemical properties to neon.

Therefore, the element that does NOT have similar chemical properties to neon is (a) F (Fluorine).

c He

Helium is correct because it has a full outer shell and therefore is resistant to reacting. The others are active.