atomic structure (eletron shells and quantum numbers)) Flashcards

1
Q

atomic shell

A

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

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2
Q

how are atomic shells labeled

A

labelled using principal quantum numbers (1st hell ,2nd ,3rd ..) or x-ray nations (K or 1st shell,L,M,N…)

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3
Q

quantum numbers

A

series of numbers and letters which describe the position and energy of an electron in an atom

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4
Q

principal quantum numbers (n)

A

describes the shell in which an atom resides

beginning with closest atomic shell to nucleus

has values of 1,2,3,4 etc

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5
Q

atomic subshells

A

subdivision of electrons shells, each containing up to a specific amount of electrons

labelled as s,p,d or f

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6
Q

azimuthal quantum shell number (l)

A

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

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7
Q

atomic orbital

A

function which describes a region of space where there is a high chance of finding an electron

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8
Q

magnetic quantum number (m or ml)

A

describes atomic orbital within a subshell and defines induvial orbits

value range from negative l to positive l

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9
Q

spin quantum number

A

describes direction electron spin for given electron

has value either -1/2 or +1/2 only

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10
Q

shell label (K)

A

n = 1

subshells = s

sunshells l valvues = 0

no. of orbitals per subshell = 1

no. of electrons = 2

total electron capacity

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