What is the formula for the compound formed when potassium reacts with nitrogen?
what are the risks of using oil as a fuel ?
Do not piggy back one question on another as it looks as though you have answered the question.
"what are the risks of using oil as a fuel ?"
Do you mean hazards? Risk is a combination of the consequence and probability.
Hazards include
fire
theft (sad to say common in rural communities in the UK at the moment)
single heating/cooking supply (so that failure of delivery means no heating or cooking)
spills into the ground (enviromental contamination)
spills on hands etc. (fuel oil contains toxic and carcenogenic compounds)
You can probably think of a few more. These are the hazards. It says nothing about the consequences or the probability of the consequence occurring.
What is the formula for the compound formed when potassium reacts with nitrogen?
I think you mean potassium nitride (K3N)
"what are the risks of using oil as a fuel ?"
I have assumed in generating my hazards list that you are asking about the domestic use of oil as a fuel.
Did you mean more generally?? If so you will have to define the boundaries of 'oil' and 'as a fuel'
To determine the formula for the compound formed when potassium (K) reacts with nitrogen (N), you need to consider their valence electrons and the concept of ionic bonding.
Potassium is in Group 1 of the periodic table, which means it has one valence electron. Nitrogen is in Group 15, which means it has five valence electrons. Potassium wants to lose its one valence electron to achieve a stable octet configuration, while nitrogen wants to gain three electrons to also achieve a stable octet configuration.
In an ionic bond, electrons are transferred from one atom to another, resulting in the formation of charged particles called ions. The atom that loses electrons becomes a positively charged ion (cation), while the atom that gains electrons becomes a negatively charged ion (anion).
In this case, potassium will lose its one valence electron to nitrogen, allowing nitrogen to achieve a stable octet configuration. As a result, potassium will form a +1 cation (K+), and nitrogen will form a -3 anion (N^-3).
To balance the charges, three potassium ions (K+) will combine with one nitrogen ion (N^-3). Therefore, the formula for the compound formed when potassium reacts with nitrogen is K3N.