Chapter 5

Question 1

An example of a metal element is

Answer 1

aluminum

Question 2

An example of a nonmetal is

Answer 2

carbon

Question 3

The lightest elements are found at the _______ of the periodic table.

Answer 3

top

Question 4

Most elements are __________

Answer 4

solid, metal

Question 5

Which element would not have three valence electrons?
boron
krypton
gallium
thallium

Answer 5

krypton

Question 6

The symbol for the element iron is __________

Answer 6

Fe

Question 7

As you move down the periodic table, ___________

Answer 7

energy levels increase

Question 8

Metal elements could be described as ____________

Answer 8

shiny, hard and good conductors of heat & electricity

Question 9

An atom of oxygen has __________ electrons in the second energy level.

Answer 9

6

Question 10

Draw an electron dot diagram for oxygen

Answer 10

should draw an O with 2 dots on top, 2 dots on one side, 1 dot on the bottom and 1 dot on the other side

Question 11

Oxygen is in Group _________ and Period ________

Answer 11

Group 16; Period 2

Question 12

Oxygen will combine with _________ atom(s) of hydrogen to form a water molecule.

Answer 12

2

Question 13

Another element in the same chemical family as oxygen is ______________

Answer 13

any element in Group 16

Question 14

The element aluminum has _________ electron(s) in the first energy level, _____________ electron(s) in the second energy level, _________ electrons(s) in the third energy level and _________ electron(s) in the fourth energy level.

Answer 14

2
8
3
0

Question 15

The _________ is a chart that arranges elements having similar properties into the same group.

Answer 15

periodic table

Question 16

An electron in the outermost energy level is a ________ electron

Answer 16

valence

Question 17

The repulsion force between protons in the nucleus is overcome by the _____________

Answer 17

strong force

Question 18

Valence electrons are represented by dots in __________ diagrams.

Answer 18

electron dot

Question 19

The electrostatic charge of the nucleus is ________

Answer 19

positive

Question 20

Of the following two words, which is the one that causes the other:
properties
structures

Answer 20

structures

Question 21

electrons have a _________ electrostatic charge

Answer 21

negative

Question 22

electrons are located _____________

Answer 22

in energy levels surrounding the nucleus

Question 23

protons have a __________ electrostatic charge

Answer 23

positive

Question 24

protons are located ______________

Answer 24

in the nucleus

Question 25

neutrons have a ___________ electrostatic charge

Answer 25

neutral

Question 26

neutrons are located __________

Answer 26

in the nucleus

Question 27

Be able to identify, using a periodic table of elements, the atomic number, atomic mass, # of protons, # of neutrons and # of electrons for the following elements:
lithium
sodium
tin

Answer 27

be able to use the periodic table and locate information for the elements on the table; you do NOT need to memorize the elements on the periodic table.