Ch 5 Section 2

Question 1

Stability o noble gases results from

Answer 1

The gases special electron configurations

Question 2

Generally the electron configurations of an atoms highest occupied energy level governs

Answer 2

The atoms chemical properties

Question 3

Elements are arranged vertically in periodic table in groups that share

Answer 3

Similar chemical properties

Question 4

Periods

Answer 4

Horizontal rows

7 in the modern periodic table

Question 5

Length of each period is determined by the number of

Answer 5

Electrons that can occupy the sublevels being filled in that period

Question 6

The 1s sublevel is being filled in the

Answer 6

First period

Question 7

1s sublevel can hold a total of

Answer 7

2 electrons, and thus, it consists of two elements

Question 8

In the second period the following sublevels are being filled

Answer 8

2s

2p

Question 9

2s sublevel can hold

Answer 9

2 electrons

Question 10

2p sublevel can hold

Answer 10

6 electrons

Question 11

Second period totals

Answer 11

8 elements

Question 12

Filling of the 3s and 3p sublevels accounts for

Answer 12

The eight elements of the third period

Question 13

Filling 3d and 4d sublevels in addition to s and p sublevels adds

Answer 13

10 elements to both the fourth and fifth periods

Thus each of these periods totals 18 electrons

Question 14

Filling 4f sublevels in addition to s p and d sublevels adds

Answer 14

14 elements to 6th period which totals 32 elements

Question 15

As new elements are created the 25 named elements in period 7 could be

Answer 15

Extended to 32

Question 16

Period of an element can be determined from the

Answer 16

Elements electron configuration

Coefficient in highest energy level= period

Question 17

Periodic table is divided into

Answer 17

4 blocks
S
P
D
F

Question 18

Elements of the s block are chemically

Answer 18

Reactive metals

Question 19

Group 1 metals are more reactive than

Answer 19

Those of group 2

Question 20

The ease with which the single electron is lost helps to make the group 1 metals

Answer 20

Extremely reactive

Question 21

The elements of group 1 of the periodic table

Answer 21

(Lithium, sodium, potassium, rubidium, cesium, francium) known as the alkali metals

Question 22

In pure state all alkali metals have a

Answer 22

Silvery appearance and are soft enough to cut with a knife

Question 23

Alkali metals are not found in

Answer 23

Nature as free elements

Question 24

Alkali metals combine

Answer 24

Vigorously with most nobmetals and react strongly with water to produce hydrogen gas and aqueous solutions of substances known as alkalis

Question 25

Alkali metals are usually stored in

Answer 25

Kerosene

Question 26

Preceding down the volume the elements of group 1 melt at

Answer 26

Successively lower temperatures

Question 27

The elements of group 2 of the periodic table

Answer 27

(Beryllium, magnesium, calcium, strontium, barium, radium) are called the alkaline earth metals

Question 28

Atoms of alkaline-earth metals contain a

Answer 28

Pair of electrons in their outermost s sublevel

Question 29

Group configuration for group 2 is

Answer 29

ns^2

Question 30

Group configuration of group 1 is

Answer 30

ns^1

Question 31

Group 2 metals are (comparison with alkali metals)

Answer 31

Harder Denser Stronger Higher melting pts than alkali metals

Question 32

Alkaline earth metals are also too

Answer 32

Reactive to be found in nature as free elements

Question 33

Hydrogen does not share the

Answer 33

Same properties as elements of group 1 | Unique element

Question 34

Helium has ns^2 configuration like group 2 but is part of

Answer 34

Group 18

Question 35

Because its highest occupied energy level is filled by two electrons helium possessed

Answer 35

Special chemical stability exhibiting the unreactive nature of a group 18 element

Question 36

Group 2 metals have no

Answer 36

Special stability | Highest occupied energy levels aren't filled because each metal has an empty p sublevel

Question 37

For energy level n there are

Answer 37

N possible sublevels

Question 38

In addition to the two ns electrons of group 2 Atoms of the group 3 elements each have

Answer 38

One electron in the d sublevel of the (n-1) sublevel

Question 39

Group configuration for group 3 is

Answer 39

(n-1)d^1ns^2

Question 40

Atoms of the group 12 elements have

Answer 40

10 electrons in the d sublevel plus two electrons in the ns sublevel

Question 41

Group configuration for group 12 is

Answer 41

(n-1)d^10ns^2

Question 42

The d block elements are metals with

Answer 42

Typical metallic properties and are often referred to as transition elements

Question 43

D block elements are

Answer 43

Good conductors of electricity and have a high luster | Typically Less reactive than alkali metals and alkaline earth metals

Question 44

Some d block elements are so unreactive that they do not

Answer 44

Easily form compounds, existing in nature as free elements

Question 45

Atoms of all p block elements contain

Answer 45

2 electrons in the ns sublevel

Question 46

The p block elements together with the s block elements are called the

Answer 46

Main group elements

Question 47

For group 13 elements added electron enters the

Answer 47

Np sublevel giving group configuration of ns^2np^1

Question 48

Atoms of group 14 elements contain 2 electrons in p sublevel giving

Answer 48

ns^2np^2 for group configuration

Question 49

Group configuration for 13-18

Answer 49

ns^2np^1-6

Question 50

For atoms of p block elements the total number of electrons in the highest occupied level is equal to

Answer 50

The group number minus 10

Question 51

At right hand end p block includes all of the

Answer 51

Nobmetals except hydrogen and helium

Question 52

All six of the metallloids are also in the

Answer 52

P block

Question 53

At the left hand side and bottom of the p block there are

Answer 53

Eight p block metals

Question 54

The elements of group 17

Answer 54

(Fluorine, chlorine, bromine, iodine, astatine) | Are known as halogens

Question 55

Halogens are the most reactive

Answer 55

Nonmetals

Question 56

The reactivity of halogens is based on the presence of

Answer 56

7 electrons in their outer energy levels- one electron short of the stable noble gas configuration

Question 57

Fluorine and chlorine are

Answer 57

Gases at room temp

Question 58

Bromine is a

Answer 58

Reddish liquid

Question 59

Iodine is a

Answer 59

Dark purple solid

Question 60

Astatine is a synt

Answer 60

Synthetic element prepared in only very small quantities

Question 61

Metallloids are located between

Answer 61

Nonmetals and metals in p block

Question 62

Metals of the o block are generally

Answer 62

Harder and denser than the s block alkaline earth metals but softer and less dense than the d block metals

Question 63

With exception of bismuth the metals of p block are sufficiently

Answer 63

Reactive to be found in nature only in form of compounds

Question 64

The position of f block elements reflects the fact that

Answer 64

They involve the filling of the 4f sublevel

Question 65

Lanthanides are shiny

Answer 65

Metals similar in reactivity to alkaline earth metals

Question 66

Actinides are all

Answer 66

Radioactive | First four found naturally and remaining are lab made

Question 67

Group 18 elements of the periodic table undergo

Answer 67

Few chemical reactions