To solve this problem, we need to arrange the elements in increasing order of electronegativity.$\\$Electronegativity is a measure of an atom's ability to attract and hold onto electrons.$\\$The elements given are: N, O, F, C, Si.$\\$Let's consider the electronegativity values of these elements:$\\$• Fluorine (F) has the highest electronegativity, approximately 3.98.$\\$• Oxygen (O) follows with an electronegativity of about 3.44.$\\$• Nitrogen (N) has an electronegativity of around 3.04.