4. the shape (not the size) of an electron cloud is determined by the electron's energy sublevel
position
speed
principal quantum number

The shape (not the size) of an electron cloud is determined by the electron's energy sublevel.

Explanation:

The s sublevel has only 1 orbital, thus will contain a pair of electrons max in it. The p sublevel has three orbitals, thus will contain half-dozen electrons max. The d sublevel has five orbitals, thus will contain ten electrons max. and therefore the four sublevel has seven orbitals, thus will contain fourteen electrons max.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.