Quiz #2 info

Question 1

Erwin Schrödinger

Answer 1

Quantum Model

Question 2

Which equation proves that electrons behave like particles & waves?

Answer 2

Debroglie equation

Question 3

Which equation proves distance from the nucleus is related to lambda of the e-?

Answer 3

Debrogile Equation

Question 4

What principle states that we only know the position/speed of an electron at one time?

Answer 4

Heisenberg’s Uncertainty Principle

Question 5

Which equation gives us the location of electrons using orbitals and as et of QNs?

Answer 5

Schrödinger’s Equation

Question 6

Principle QN describing size & energy level

Answer 6

n (1,2,3…)

Question 7

Angular momentum QN describing shape of orbital

Answer 7

l (0->n-1)

Question 8

Magnetic QN describing the orientation of the orbital

Answer 8

ml

Question 9

Which principle states: “fill the lowest energy orbital 1st, then the higher energy orbital”?

Answer 9

Aufbau principle

Question 10

Which principle states: “an orbital can only hold 2 electrons, which must have opposite spins”?

Answer 10

Pauli’s exclusion principle

Question 11

Which rule states: “If 2+ orbitals with the same energy are available, one electron goes into each orbital until all are 1/2 filled”?

Answer 11

Hund’s rule

Question 12

Down group 1A, as the # of electrons/protons increases, radius __

Answer 12

increases

Question 13

Across the periodic table, as the the # of electrons/protons increases, radius__

Answer 13

decreases

Question 14

Cations are __ than its neutral atom

Answer 14

smaller

Question 15

Anions are __ than its neutral atom

Answer 15

larger

Question 16

When the same # of electrons are present use __ to decide

Answer 16

Effective Nuclear Energy

Question 17

What is the energy required to remove an electron from an atom?

Answer 17

Ionization energy

Question 18

IE __ across the periodic trend

Answer 18

Increases