Which of the following is true about the Lewis structure of NF3? -26 valence electrons have to be accounted for in NF3
-There are single covalent bonds between N and F
-The N atom is less electronegative than the F and so occupies the central position in the skeletal structre
-All of the above

10 years is the answer

to improve her experimental investigation, dalila should add a row in which no fertilizer is used. by a having a contrasting row in which no fertilizer is used, she will have a control group that will her understand the effects of the fertilizer in the plant developments vs the development of the plant when no fertilizer is used.