A-level atomic structure

Question 1

whats the principal quantum number

Answer 1

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

Question 2

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

Answer 2

2n^2

Question 3

whats the prinicple quantum number of the third shell

Answer 3

3

Question 4

whats the prinicple quantum number of the first shell

Answer 4

1

Question 5

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

Answer 5

principal quantum number

Question 6

whats an atomic orbital

Answer 6

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

Question 7

whats an electron

Answer 7

a cloud of negative charge

Question 8

what does the atomic orbital show you

Answer 8

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

Question 9

what type of spins are there

Answer 9

up spin and down spin

Question 10

what shape is the negative charge cloud

Answer 10

it has the shape of the orbital occupied by the electron

Question 11

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

Answer 11

s,p,d,f

Question 12

what shape is the s orbital

Answer 12

spherical

Question 13

what shape is the p orbital

Answer 13

dumbell

Question 14

do all electron shells contain an s orbital

Answer 14

YES

Question 15

does every electron shell contain a p orbital

Answer 15

No

Question 16

which electron shells contains p orbital

Answer 16

all except the first

Question 17

how many p orbitals are contained in shells

Answer 17

3

Question 18

which electron shells contain 5 d orbitals

Answer 18

every one apart from shells 1 and 2

Question 19

how many f orbitals are there

Answer 19

7

Question 20

where can the f orbitals be found

Answer 20

in all except electron shells 1 2 and 3

Question 21

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

Answer 21

2

Question 22

what is a sub level

Answer 22

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