Which element would you expect to have a higher electronegativity than nitrogen (n)?
fluorine (f)
cesium (cs)
boron (b)
phosphorous (p)

The first option, Fluorine (F). The is the correct asnswer that has been verified.

Option (a) is the correct answer.

Explanation:

When we move from left to right in a periodic table then electronegativity of atoms increases.

Nitrogen and fluorine are present in the same period. Nitrogen belongs to group 7 whereas fluorine belongs to group 9.

Thus, out of the given options electronegativity of fluorine is more as compared to nitrogen.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.