Class 1

Question 1

What is the atomic number made of?

Answer 1

Protons determine element

Question 2

What is the element mass number determined by?

Answer 2

Protons and neutrons

Question 3

When trying to exciters and electron to an more excited state, where does the energy come from?

Answer 3

Comes from a photon (particle of light)

Question 4

What sign depicts energy absorbed from photon and energy emitted from photon?

Answer 4

Absorbed +

Emitted -

Question 5

What is the relationship between energy frequency and wavelength?

Answer 5

E and F are proportional

E is inversely promotional to wavelength

Question 6

What is the equation for energy?

Answer 6

E=h(planks constant) x frequency

Question 7

What is the order of wavelengths from lowest to highest?

Answer 7

Radio
microwave
IR
Visible light (ROYGBV)
UV
Xray
Gamma

Question 8

What are characteristics of low energy wavelengths?

Answer 8

Long wavelength and low frequency

Question 9

What are characteristics of high energy wavelengths?

Answer 9

Short Wavelengths and high frequency

Question 10

How does e- energy differ in the distance of the e-?

Answer 10

Energy increases with distance from nucleus

Energy increase with complexity of orbital shapes

Question 11

In p and d orbitals how many orbitals are there and how many e- can It hold?

Answer 11

p has 3 orbitals that hold 6 e-

d has 5 orbitals that have 10 e-

Question 12

What is the difference between diamagnetic and paramagnetic?

Answer 12

Diamagnetic has a all e- paired

Paramagnetic has at least 1 unpaired e-

Question 13

What happens to e-s when you have a positive charge or a negative charge?

Answer 13

Positive: you remove e-
Negative: you add e-

Question 14

What are core e-?

Answer 14

They shield valence e- from the full nuclear charge

Question 15

What is atomic radius?

Answer 15

Valence e- pulled more toward nucleus

• from left to right decreases
• from top down increases

Overall trend increases as you go down and to the left

Question 16

What is ionic radius?

Answer 16

Valence e- repulsion is increase in anions and decreasing repulsion in cations

Question 17

What is isoelectric?

Answer 17

Same e- configuration
Shielding is the same
Z is different (charge from nucleus reaching to valence e-)

Question 18

What is ionization energy?

Answer 18

The main energy required to remove a valence e-

• from left to right increases
• From top to bottom decreases

Overall trend increases as you go up and to the right

Question 19

What is electron affinity?

Answer 19

Energy change when adding an e- to valence shell of an atom in gaseous state

• from left to right increases
• from top to bottom decreases

Overall trend increases as you go up and to the right

Question 20

What isElectronegativity?

Answer 20

Ability of an atom to attract e- to itself in a covalent bond

• from left to right increases
• from top to bottom decreases

Question 21

What is acidity?

Answer 21

The ability to decrease pH depends not he relativities of acid and conjugate base

• from left to right increase in electronegativity= more stable conjugate base and stronger acid
• from top to bottom atomic radius increases=more stable conjugate base and stronger acid

Question 22

How does size affect acidity?

Answer 22

As size increases, becomes more stable if its in the same column