The components of a solution are solute and solvent
So, the compound is HCN.
H can only form one bond, while carbon can form 4 bonds and N can form three
bons.
That drives you to conclude that H will bond the carbon and the carbon will form a triple bond
with N:
H - C (triple bond) N
Now, you must count the valence electrons to determine how many and where valence electrons are not forming bonds.
H has one valence electron which is in the H - C bond.
C has four valence electrons which are one in the H - C bond and three in the CN bonds.
N
has five valence electrons and it has three of them in the CN bonds,
therefore you have to add two electrons (points or other marks) to the N
atom.
This is the resultant Lewis structrue:
**
H - C (triple bond) N (draw the two ** close to the N symbol)
You have to draw three hyphens to represent the triple bond and include
the two ** over the N atom to represent the two electrons that are not
forming a bond.
The atomic number is the number of protons, while the atomic mass is the number of protons added to the number of neutrons. By definition, potassium (K) has atomic number 19, so it should have 19 protons. If it has a mass of 42, then the number of neutrons is 42 - 19 = 23 neutrons. This is choice (1).
Answer:
2 unpaired electrons
Explanation:
Carbon's bonding state electron configuration is 1s2 2s1 2s1 2p1 2p1. So, there are 4 unpaired electrons in the orbitals of carbon in bonding state.
hope this helps