atomic structure (eletron shells and quantum numbers)) Flashcards
atomic shell
orbit that electrons follow around nucleus of an atom
each shell can only hold specific number of and they increase in energy as they become further from nucleus
how are atomic shells labeled
labelled using principal quantum numbers (1st hell ,2nd ,3rd ..) or x-ray nations (K or 1st shell,L,M,N…)
quantum numbers
series of numbers and letters which describe the position and energy of an electron in an atom
principal quantum numbers (n)
describes the shell in which an atom resides
beginning with closest atomic shell to nucleus
has values of 1,2,3,4 etc
atomic subshells
subdivision of electrons shells, each containing up to a specific amount of electrons
labelled as s,p,d or f
azimuthal quantum shell number (l)
describes atomic subshell electron resides and tells you about the shape of electron orbit
labelled as s,p,d or f and has value of 0,1,2, etcA
atomic orbital
function which describes a region of space where there is a high chance of finding an electron
magnetic quantum number (m or ml)
describes atomic orbital within a subshell and defines induvial orbits
value range from negative l to positive l
spin quantum number
describes direction electron spin for given electron
has value either -1/2 or +1/2 only
shell label (K)
n = 1
subshells = s
sunshells l valvues = 0
no. of orbitals per subshell = 1
no. of electrons = 2
total electron capacity