Chapter 5

Question 1

Wave Equation

Answer 1

C=λν

Speed of light (C) =3.00 x 10^8 m/s = Wavelength (λ) x Frequency (ν)

Question 2

Speed of light

Answer 2

3.00 x 10^8 m/s

Question 3

Units in which wavelength is measured

Answer 3

m or nm

Question 4

Frequency (ν)

Answer 4

The number of times the crests of a wave pass a point in 1s.

Question 5

Wavelength (λ)

Answer 5

The distance from a crest of trough in the wave to the next crest or trough in the wave.

Question 6

Order of increasing Energy of Sub-levels in an Energy level

Answer 6

S < P < D < F

Question 7

How many sublevels does n=3 have and what are they?

Answer 7

Three and they are 3s, 3p, 3d

Question 8

Maximum # of electrons allowed in any energy level ?

Answer 8

2n^2

Question 9

Each orbital holds _ electrons

Answer 9

2

Question 10

What is the Pauli Exclusion Principle

Answer 10

Each orbital can hold a maximum of two electrons. The two electrons spin in opposite directions.

Question 11

Draw a Orbital diagram

Answer 11

____

Question 12

What is an Electron configuration ?

Answer 12

It indicates the placement of the electrons of an atom in order of increasing energy.

Question 13

What is an Abbreviated Configuration ?

Answer 13

The last sub level of that was filled by the electrons

Question 14

T / F … D block is always -1 number of the period

Answer 14

True

Question 15

1s^2 2s^2 2p^4 is what element

Answer 15

Oxygen

Question 16

Four 3p electrons

Answer 16

Sulfur

Question 17

Valence electrons are based on what number ?

Answer 17

Group

Question 18

What is atomic size ?

Answer 18

The distance of the valence electrons from the nucleus. Increases form top to bottom of the periodic table. Decreases from left to right across a period. As the arrow goes down the more layers the element has.

Question 19

Ionization energy

Answer 19

The energy needed to remove one valence electron from an atom in the gaseous state. Decreases down a group. Increases from left to right across a period.