Ch. 9 Reading

Question 1

Wavelength

Answer 1

The distance between any 2 corresponding points on adjacent waves

Question 2

Crest

Answer 2

Wave cycle going up

Question 3

Trough

Answer 3

Wave cycle going back down

Question 4

What units can wave length to be measured in?

Answer 4

Meters, centimeters, or nanometers

Question 5

Frequency

Answer 5

The number of waves that pass a certain point in a specified amount of time

Question 6

What unit is frequency measured in?

Answer 6

Units of cycles per second or waves per second

Question 7

As the wavelength of a wave increases what happens to the frequency?

Answer 7

It decreases

Question 8

What is the highest energy form of electromagnetic waves?

Answer 8

Gamma rays

Question 9

What is the lowest energy form of electromagnetic waves?

Answer 9

Radio waves

Question 10

The electromagnetic spectrum

Answer 10

All forms of electromagnetic radiation

Question 11

Emission spectrum (atomic spectrum)

Answer 11

The unique pattern of light obtained when the element is subjected to heat or electricity

Question 12

Quantized

Answer 12

Only specific amounts of energy levels are possible

Question 13

Ground state

Answer 13

The electrons typically have the lowest energy possible

Question 14

Excited state

Answer 14

If the electrons are given energy (through heat, light, electric, etc) electrons in an atom could absorb energy by jumping to a higher energy level

Question 15

Photon

Answer 15

energy given off by electrons in the form of a piece of light

Question 16

Quantum mechanics



Answer 16

The study of the motion of objects that are atomic or subatomic in size and thus demonstrate wave particle duality

Question 17

What is the study of motion of large objects?

Answer 17

Mechanics

Question 18

Quanta

Answer 18

Small pieces of energy

Question 19

Orbital

Answer 19

Mathematically derived regions of space with different probabilities of having an electron

Question 20

Orbits (bohr model)

Answer 20

Simple circular orbit with the fixed radius around the nucleus

Question 21

Electron configurations

Answer 21

A map of the electrons for a given atom

Question 22

Orbitals I have the same value of the principal quantum number form what?

Answer 22

Shell

Question 23

Subshells

Answer 23

Orbitals within a cell that have the same value of the angular quantum number

Question 24

Electronic configuration

Answer 24

Represent the organization of electrons in shells and subshells in an atom

Question 25

I The lowest energy sublevel is always the ____ sub level, which consists of one orbital 

Answer 25

1s

Question 26

The single electron of the ________ atom ill occupy the 1s orbital when the atom is in its _________ state

Answer 26

Hydrogen, | Ground

Question 27

The Aufbau Principle

Answer 27

States that an electron occupies orbitals in order from lowest energy to highest. Sometimes referred to as the building up principal. 

Question 28

Pauli exclusion principle

Answer 28

States that no two electrons in an atom can have the same set of four quantum numbers

Question 29

Hunds Rule

Answer 29

States that orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron and that each of the single electrons must have the same spin

Question 30

s block

Answer 30

The first two rows of the periodic table

Question 31

P block

Answer 31

Right most six columns of the periodic table

Question 32

D block

Answer 32

The middle 10 columns of the periodic table

Question 33

F block

Answer 33

The 14-column section that is normally depicted as detached from the main body of the periodic table

Question 34

Variance electrons

Answer 34

The electrons in the highest-numbered shell, plus any electrons in the last unfilled subshell

Question 35

Valence shell

Answer 35

The highest numbered shell

Question 36

What are the inner electrons called?

Answer 36

Core electrons

Question 37

Group

Answer 37

Vertical column of the periodic table

Question 38

How many valence electrons do the A1 elements have?

Answer 38

One

Question 39

Alkali metals

Answer 39

Group 1A, soft metals that can be easily cut

Question 40

What group is Alkaline earth metals?

Answer 40

Group 2A

Question 41

What group is called halogens?

Answer 41

Group 7A (very reactive nonmetal elements)

Question 42

What group is called the noble gases?

Answer 42

Group 8A, Extremely unreactive, rarely forming compounds

Question 43

Period

Answer 43

Horizontal row of elements on the periodic table

Question 44

Transition elements

Answer 44

Group 3 to 12 on the periodic table

Question 45

Periodic trends

Answer 45

The variation of properties versus position on the periodic table

Question 46

Atomic radius

Answer 46

An indication of the size of an atom

Question 47

PT stands for ____________ ______________

Answer 47

Periodic table

Question 48

Atomic size

Answer 48

The distance from the nucleus to the valence shell where the valence electrons are located

Question 49

Atomic radius

Answer 49

A more definite and measurable way of defining atomic size

Question 50

 what are the three factors that help the prediction of the trends in the periodic table?

Answer 50

1. ) number of protons in the nucleus 2. ) number of shells 3. ) shielding effect