Which is a property of fluorine(F)? A. it is found as a liquid in nature B. It conducts electricity C. It does not react D. It readily reacts

D. It readily reacts.

Explanation:

Fluorine is a member of the halogen group, and has seven valence electrons. This means it is very close to having a stable octet of 8 valence electrons. It has high electronegativity and will easily react with other elements, especially alkali metals, to form compounds.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"