Periodic Table

Question 1

Periodic table organizes all of the known elements according to their _____

Answer 1

Chemical properties

Question 2

Three major categories

Answer 2

Metals, non-metals, metalloids

Question 3

Metals are _____ (5)

Answer 3

Shiny
Good conductors of heat and electricity
Malleable
Ductile
Solid at room temp except for mercury which is a liquid

Question 4

Non metals are _____ (4)

Answer 4

Dull
Bad conductors of heat and does not conduct electricity
Brittle
Solid, liquid or gas at room temp

Question 5

Metalloids are _____(3)

Answer 5

Have characteristics of both metals and non metals
Often brittle solids
Conduct electricity but not as well as metals

Question 6

The periodic table was devised by _____

Answer 6

Dimitri Mendeleev

Question 7

Rows

Answer 7

Periods

Question 8

Elements of the same period have the same number of _____

Answer 8

Atomic shells

Question 9

First row / first period has _____ electron shells

Answer 9

1

Question 10

Column

Answer 10

Group/family

Question 11

How many groups?

Answer 11

18

Question 12

How many periods?

Answer 12

7

Question 13

Elements of the same group have_____

Answer 13

Very similar properties

Question 14

Elements in a group have the same number of _____ in their outermost shell

Answer 14

Electrons (valence electrons)

Question 15

Group 1 elements have _____ electron in its outer shell (this is true for groups 1-7) (group 3=13)

Answer 15

1

Question 16

4 most important groups

Answer 16

1 alkali metals
2 alkaline earth metals
17 halogens
18 noble gases

Question 17

Group 1 Alkali metals are _____

Answer 17

Most reactive

Question 18

Group 2 alkaline earth metals are_____

Answer 18

2nd most reactive

Question 19

Group 17 halogens are _____

Answer 19

Most reactive non metals

Question 20

Group 18 noble gases are _____

Answer 20

Least reactive (stable)