assuming the valencies of hydrogen nitrogen and carbon are 1,3,and 4. i need to draw a structural formulae for hydrogen cyanide and cyanogen that are consistant with these values

H(triple bond)C-N
N(triple bond)C-C(triple bond)N

To draw the structural formulae for hydrogen cyanide (HCN) and cyanogen (C2N2) based on the given valencies, follow these steps:

1. Hydrogen Cyanide (HCN):
- Hydrogen (H) has a valency of 1, so it can form only one bond.
- Carbon (C) has a valency of 4. Since nitrogen (N) has a valency of 3, a single bond is needed to form a compound with hydrogen (H).
- To balance the valencies, a triple bond is formed between carbon (C) and nitrogen (N).
- The structural formula for hydrogen cyanide is H(triple bond)C-N.

2. Cyanogen (C2N2):
- Carbon (C) has a valency of 4. Since nitrogen (N) has a valency of 3, two nitrogen atoms are needed to form a compound with two carbon atoms.
- To balance the valencies, triple bonds are formed both between the carbon (C) atoms and between the nitrogen (N) atoms.
- The structural formula for cyanogen is N(triple bond)C-C(triple bond)N.

Remember, the valencies provided are guidelines on how many bonds an atom can potentially form. To determine the actual structure of a compound, other factors such as electron arrangements and molecular geometry may also need to be considered.