What is the Lewis structure of NHF2?

Answer 1

NH2F: Draw the N in a central position. Place the two H's to each side and the F below it. Put one line (signifying a single covalent bond) between the N and each H; the same for N and the F. Place two dots close together just above the N; place two more directly below the F; finally, add two pairs of dots to each side of the F as well.

Answer 2

first you must calculate the total number of electrons. You have one nitrogen, one hydrogen, and two fluorine. Now, multiply them by the valence electrons (1x5=5)+(1x1=1)+(2x7=14). Then add them up and you should get (5+1+14=20) 20 electrons. Now divide by two and you have 10 pairs of electrons to use. Nitrogen is the central atom and needs four pairs of electrons. Hydrogen only needs one pair, and finally fluorine needs to have four pairs aswell.