Covalent bonding is when an electronegative atom (an electrophile) steals charge from the outer electron shell of an electropositive atom, or the results of a nucleophilic substitution, such as say, an isocyanate reacting with an amine to form a urea (carbamate). Also including the likes of carbon-carbon single, double or triple bonding, and the more unusual quadruple, and even sextuple bonding between certain metal atoms.
The other types of bonding are either electrostatic in nature and reversible easily such as by dissolution in water, such as the bonds between atoms forming ionic salts, such as NaCl, NaOH, phosphates/phosphites/phosphonates, carboxylic acid salts etc. or take advantage of physical surface interactions, such as hydrogen bonding and Van Der Waals bonding, these are much weaker than even ionic bonding. IIRC the reason geckos can run straight up smooth glass is because of Van Der Waals bonding between the many tiny hair-covered flaps upon the feet.
In my shopping list, PCl3 is phosphorus trichloride, a volatile, somewhat toxic liquid that fumes off HCl as it hydrolyzes in moisture, reacts violently with H2O, releasing torrents of HCl(gas) whilst SOBr2 is thionyl bromide, similar in character but would release HBr and SO2 when it hydrolyzes.
Neutrons are the third superficial particles within the nucleus of the atom.
And your llikely right. While I can patch the likes of chemical burn holes in clothes sewing anything more complex is not my forte.
