3.5

Question 1

who developed wave mechanics

Answer 1

schrodinger

Question 2

what is the schrodinger equation usually used to calculate

Answer 2

the wavefunction (psi)

Question 3

what symbol i used for wavefunction

Answer 3

psi (trident looking fella)

Question 4

which section of the schrodinger equation is about potential energy

Answer 4

EPE psi

Question 5

which section of the schrodinger equation is about total energy

Answer 5

E psi

Question 6

which section of the cshrodinger equation is about kinetic energy

Answer 6

partial derivative section in the brackets

Question 7

what do teh differentials in the shrodinger equation mean

Answer 7

they show changes to wavefunction in relation to distance from the nucleus for each of the three axis when the other two axis are constant

Question 8

what molecules can the schrodinger equation itself solve for

Answer 8

two-body problems like hydrogen and helium ion ect.

atoms with a nucleus and one electron

Question 9

who suggested how wavefunction can be a measurable property

Answer 9

Max Born in the born interpretation

Question 10

what is the born interpretation

Answer 10

the square of the wavefunction is proportional to finding the electron in the small area - d tau

Question 11

does the schrodinger equation treat electrons as waves or particles

Answer 11

waves

Question 12

the solved schrodinger equation showing only certain energies are possible

Answer 12

En = hR/n^2

when R = me^4/8h^3 epsilon0^2

Question 13

what is electron density

Answer 13

probability per unit volume of there being an electron

Question 14

what do the symbols in the schrodinger equations mean

Answer 14

R is a constant
me is the mass of an electron
e is the charge of an electron
h is the planck constant
epsilon0 is the vacuum permmittivity, a constant
n is the principle quantum number

Question 15

what are the three symbols for quantum numbers

Answer 15

n l ml

Question 16

what are the possible values for l when n = 3

Answer 16

0 1 and 2

Question 17

what are the possible values of ml when l = 2

Answer 17

-2, -1, 0, 1, 2

Question 18

what does n = 3 l = 0 ml = 0 orbit mean

Answer 18

3s orbit

Question 19

how do you break down the spherical coordinates of psi

Answer 19

into just the radial part dependant on R and just the angular part dependant on theta and phi

Question 20

what information does the radial wavefunction contain

Answer 20

distance from the nucleus

Question 21

what information does the angular wavefunction contain

Answer 21

the shape of the orbit

Question 22

what does the radial wavefunction/radial distance plot look like for a 1s orbital

Answer 22

starts high then ends touching y axis

Question 23

what does the radial wavefunction/radial distance plot look like for a 2s orbital

Answer 23

starts high, crosses over y axis dips down a bit then touches y axis

Question 24

what does the radial wavefunction/radial distance plot look like for a 2p orbital

Answer 24

starts at 0,0 then rises up then down to almost touch y axis

Question 25

what does the radial wavefunction/radial distance plot look like for a 3s orbital

Answer 25

starts high then dips beow y axis then rises above it then touches y axis

Question 26

what does the radial wavefunction/radial distance plot look like for a 3p orbital

Answer 26

starts at 0,0 then rises then goes down to cross y axis then rises to touch the axis

Question 27

what does the radial wavefunction/radial distance plot look like for a 3d orbital

Answer 27

starts at 0,0 then rises then goes down to touch y axis

Question 28

how many nodes does an s orbital have

Answer 28

n-1

Question 29

how many nodes does an p orbital have

Answer 29

n-2 for r>0

Question 30

how many nodes does a d orbital have

Answer 30

n-3 for r>0

Question 31

how many nodes does a f orbital have

Answer 31

n-4 for r>0

Question 32

how to turn a radial wavefunction/radial distance graph into a probability of the likelihood of an electron

Answer 32

square the radial wavefunction

Question 33

what is the difference between a probability graph and a radial wavefunction graph

Answer 33

the probability graph makes positive all the negative values

Question 34

why use a radial distribution function instead of a probability graph

Answer 34

its more useful to consider the probability of an electron being some distance from the nucleus rather than in a specific area

Question 35

shape of 1s 2s and 3s orbitals

Answer 35

spherical 2s has one node and 3s has two nodes

Question 36

shape of px py and pz orbitals

Answer 36

an hourglass with a node in the middle facing each of the axis

Question 37

shape of the hydrgen 3d orbitals

Answer 37

dxy dyz dxz and dx^2-y^2 like a four leaf clover with nodal planes between the leaves
dz^2 is and hourglass with a ring around it with nodal cones around the top and bottom of the hourglass