A-level atomic structure Flashcards

1
Q

whats the principal quantum number

A

describes the energy of an electron and the most probable distance of the electron from the nucleus

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2
Q

whats the formula for calculating the maximum number of electrons allowed in each main energy level

A

2n^2

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3
Q

whats the prinicple quantum number of the third shell

A

3

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4
Q

whats the prinicple quantum number of the first shell

A

1

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5
Q

what does n stand for in the formula 2n^2

A

principal quantum number

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6
Q

whats an atomic orbital

A

an atomic orbital is a region around the nucleus that can hold up to two electrons with opposite spins

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7
Q

whats an electron

A

a cloud of negative charge

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8
Q

what does the atomic orbital show you

A

the atomic orbital shows you the 95% probability of where an electron will exist.

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9
Q

what type of spins are there

A

up spin and down spin

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10
Q

what shape is the negative charge cloud

A

it has the shape of the orbital occupied by the electron

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11
Q

what are the 4 letters of the different typres of electronic orbitals

A

s,p,d,f

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12
Q

what shape is the s orbital

A

spherical

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13
Q

what shape is the p orbital

A

dumbell

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14
Q

do all electron shells contain an s orbital

A

YES

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15
Q

does every electron shell contain a p orbital

A

No

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16
Q

which electron shells contains p orbital

A

all except the first

17
Q

how many p orbitals are contained in shells

A

3

18
Q

which electron shells contain 5 d orbitals

A

every one apart from shells 1 and 2

19
Q

how many f orbitals are there

A

7

20
Q

where can the f orbitals be found

A

in all except electron shells 1 2 and 3

21
Q

whats the maximun number of electrons that can be held per orbital

A

2

22
Q

what is a sub level

A

a sublevel is all of the orbitals of the same type in the same shell

23
Q
A