bio chem- atomic structure

define chemical compounds

2 or more seperate elements

what two things can pure matter be

element or chemical compound

what charge is the nuculus and what is i made of

protons and neutrons, positive charge

what does the shell of an atom contain

negitivly charged electrons

what is the atomic number of an element

the number of protons

what is the mass number of an element

the number of protons and neutrons

what are elements

atoms with the same atomic number

what determines the physical properties of an element

the number of electrons and their arrangement

what are isotopes

atoms of the smae element but different mass number due to different number of neutrons

what are relitive masses of atoms

the mass of an atom compared to 1/12 of a carbon 12 atom

what is the relitive atomic mass

mass of an isotope compared with 1/12th of carbon 12 atom

what is a mole

a very large number of particals ( 6.02×10²3)

what is the equation for finding the number of mols

mass of the substance/ molar mass

what is molar mass

the mass of one mole

what does the ionisation of elements involve

taking away an electron

describe the trend of ionisation and electron affinity in the periodic table

increaces from left to right, decreaces going down a group

which of the shells have a higher enegry level

the shells futher from the nuculeus

what are the names and order of the sub shells the main shells are divided into

s, p, d, f

how many subshells does each electron mainshell hold

1- s, 2-sp, 3-spd, 4-spdf

how many orbitals does each subshell have

s-1, p-3, d-5, f-7

what are electron orbitals

the bit of space in the sub shell that the electron occupies

how many electrons can occupy a orbital

2

what are the 3 froms of the p orbital

hroizontal (x orbital) vertical (z orbital) diaganal (y orbital)

what are the diffrent ways that the electrons can differ in their orbital

size of orbital(principle quantum), orientation or orbital(magnetic quantum), shape of the orbital(angular quantum), the spin of the electron within the orbital.

state the order that the sub shells will fill

1- s, 2- sp, 3-sp, 4-s, 3- df, the rest of 4