2nd Topic - Periodic table

Question 1

What are alkali metals stored in and why?

Answer 1

They are stored in oil so that they do not react with oxygen

Question 2

properties are …

Answer 2

soft and have low density

Question 3

Why when you go down Group 1 does it become quicker and vigorous?

Answer 3

Distance
The strength of attraction
Reactivity

Question 4

Do alkali metals

Increase down the group or decrease down the group?

Answer 4

Decrease down the group

Question 5

Do alkali metals get less dense down the group or get more dense going down the group?

Answer 5

More dense going down the group

Question 6

Do alkali metals get more reactive going down the group or less reactive going down the group?

Answer 6

More reactive going down the group

Question 7

Are Halogens dangerous?

Answer 7

They are the most dangorous because if you breath them in you can die or burn your skin

Question 8

Do Halogens decrease or increase going down the group?

Answer 8

Increase

Question 9

Why do halogens become less reactive as you go down the group?

Answer 9

The electron to be gained from another element is further from the nucleus

Question 10

What are the vertical columns of the periodic table called?

Answer 10

Groups

Question 11

What is the only metal that is liquid at room temperature?

Answer 11

Mercury

Question 12

Metal can be s_____, meaning that it rings when it is hit. This makes metal a great material for making bells.

Answer 12

Sonorous

Question 13

What are the two most common metals found in the Earth’s crust?

Answer 13

Aliminium and iron

Question 14

Metals are malleable What does malleable mean?

Answer 14

Can be bent into different shapes

Question 15

An _____ is a compound that is formed when an element reacts with oxygen.

Answer 15

oxide

Question 16

Which of the following are true of elemental oxides?

Answer 16

Metal oxides are alkalines
non metals oxides are acidic

Question 17

A _____ ion is an ion that doesn’t change during a chemical reaction.

Answer 17

spectator

Question 18

Give me 5 bits of description about metals

Answer 18

Shiny
High density
Good Conductor of heat
Good conductor of electricity
Malleable
Sonorous
Ductile

Question 19

Give me 5 bits of description about non-metals

Answer 19

Dull
Not sonorous
Brittle
Low density
Poor conductor of heat
Poor conductr of electricity

Question 20

What is the scientific equation for

Magnesium + Oxygen —->

Answer 20

Mg + O2 —–> MgO

Question 21

If two elements like helium and neon are in the same group, what does this tell us about their properties?

Answer 21

They are similar properties but not the same

Question 22

Lithium + Water ——>

Answer 22

Lithium Hydroxide + Hydrogen

Question 23

What is the scientific equation for
Lithium + Water ——>

Answer 23

Li + H2O —–> LiOH + H2

Question 24

State one use of chlorine?

Answer 24

Little bits of chlorine destroy deadly bits of bacteria so people can swim and drink

Question 25

The halogens have low melting points Why?

Answer 25

THey do not conduct electricity.

Question 26

Iron + Chlorine ----->

Answer 26

Iron Chloride

Question 27

There is a _____ in _______. The reation of ______ with Iron is very ______.

Answer 27

Trend Reactivity Chlorine Vigorous

Question 28

Describe how the reaction of the group 7 elements with iron change going down the group?

Answer 28

As you go down the halogens in the periodic table their reactivity with Iron decreases.

Question 29

Show an example of displacement reactions

Answer 29

Chlorine + Pottasium Bromide ----> Pottasium chloride + Bromine

Question 30

The group 7 elements are also called the ______. The _____ and boiling points _____ from top to _____. The reactions get ____ vigorous from ____ to ____.

Answer 30

Halogens Melting Increase Bottom More Top Bottom

Question 31

Which one of the reactions will Happen? a) Florine + Pottasium chloride ----> POttasium fluoride + chlorine b) Iodine + potassium chloride ---> Pottasium iodide + chlorine c) Bromone + sodium brominde ---> Sodium bromide + iodine d) Chlorine + sodium bromide ---> Sodium chloride + Bromine

Answer 31

A will happen because florine is more reactive the chlorine B will Not happen because Chlorine is more reactive the Bromine C will not happen because Bromine is more reactive the odine D will happen because Chlorine is more reactive the Bromine

Question 32

Predict the product of the reaction of iron with fluorine. What would a scientist see if she did the reaction? Justiy your prediction

Answer 32

The scientist would see a bright reaction which would release hear and possibly a faint glow.

Question 33

What is group 0 called?

Answer 33

The noble gases

Question 34

Noble gases are _____ at room teperature

Answer 34

Colouless

Question 35

Noble gases do what when high voltage passes through them?

Answer 35

Glow brightly

Question 36

Complete the sentences below by crossing out the incorrect answer. The rows of the Periodic Table are called groups/periods. The columns of the Periodic Table are called groups/periods.

Answer 36

Groups Periods

Question 37

What do alkali metals react with?

Answer 37

Water + Oxygen

Question 38

What is a chemical property?

Answer 38

How a substance behave in its chemical reactions

Question 39

What is density?

Answer 39

The mass of a material in a certain volume

Question 40

What is displace?

Answer 40

a more reactive metal displaces - or pushes out - a less reactive metal from it's compund

Question 41

What is the halogens?

Answer 41

Another name for the group 7

Question 42

What is metals?

Answer 42

Metals are on the left of the periodic table

Question 43

What is the noble gases?

Answer 43

Another name for the Group 0

Question 44

What is non metals?

Answer 44

Elements on the right of the periodic table.

Question 45

What is physical properties?

Answer 45

a prpoerty of a material that you can observe=

Question 46

a) Complete the sentence using one of the words below. The boiling points of the alkali metals are _____________ than the boiling points of other metals. Higher Lower The same

Answer 46

Lower