Periodic Table and ionic bonding

Question 1

The columns of the periodic table are called ……

Answer 1

Groups

Question 2

What does group number tell you?

Answer 2

Number of electrons in the outer shell

Question 3

The rows of the periodic table are called……

Answer 3

Period

Question 4

What does the period tell you?

Answer 4

Number of shells

Question 5

The outer shell of the most stable atoms is ……

Answer 5

Full of electrons

Question 6

group 1 elements are very reactive as they try to lose an ……..

Answer 6

electron

Question 7

An atom in group 7 has 7 electrons in its outer shell.

What will it try and do to become stable?

Answer 7

Gain an electron

Question 8

What is the definition of an ionic bond?

Answer 8

The electrostatic force of attraction between oppositely charged ions.

Question 9

An atom which loses an electron becomes positively charged.

What are positively charged ions called?

Answer 9

Cations

Question 10

ionic compounds have what type of structure?

Answer 10

Giant ionic lattice

Question 11

List the properties of ionic compounds?

Answer 11

High melting and boiling points

Conduct electricity in liquid and gas form

Question 12

What comes first in the formula for an ionic compound, the positive or negative ion?

Answer 12

The positive ion (the metal ion)

Question 13

Elements are divided into metals and non metals.

What are the properties of metals?

Answer 13

Conduct heat
Conduct electricity
Malleable 
Ductile
High melting point
Dense
Shiny
Ductile
Sonorous

Question 14

What are the properties of non metals?

Answer 14

Low melting point
Brittle
Dull
Poor conductors of heat
Poor conductors of electricity

Question 15

Where do non metals appear on the periodic table, the left or right side?

Answer 15

On the right side (remember the ladder)

Question 16

What % of oxygen is in the air?

Answer 16

21%

Question 17

What % of nitrogen is in the air?

Answer 17

78%

Question 18

What laboratory reaction is used to make oxygen?

Answer 18

Hydrogen peroxide —> water + oxygen

managanse (IV) oxide as catalyst

Question 19

What’s the test for oxygen?

Answer 19

Relights a glowing splint

Question 20

Describe what magnesium looks like when it burns in oxygen?

Answer 20

Burns vigorously with a bright white light

Question 21

When non metallic elements burn they form oxides which are acid or alkaline?

Answer 21

Acidic

Question 22

When metallic elements burn, they form oxides which are acidic or alkaline?

Answer 22

Alkaline

Question 23

Acid rain is caused by sulfur in fossil fuels being released to form which gas?

Answer 23

Sulfur dioxide

Question 24

Sulphur dioxide mixes with moisture and oxygen in the air to form which acid?

Answer 24

Sulfuric acid (acid rain)

Question 25

When engines burn fossil fuels, the high temp in the spark can cause the nitrogen in the air to form which gas?

Answer 25

Nitrogen oxide (adds to acid rain)

Question 26

List the effects on the environment of acid rain

Answer 26

Acidic lakes and streams killing fish and plants | Poisons trees

Question 27

What is a compound?

Answer 27

Different types of atoms chemically joined

Question 28

What is a physical change?

Answer 28

Remains same substance but in a different state E.g. Melting and boiling Easy to reverse

Question 29

What is a chemical change?

Answer 29

Substance changes to a different one E.g. Burning Rusting Difficult to reverse

Question 30

How do we make carbon dioxide in a lab ?

Answer 30

Calcium carbonate + hydrochloric acid --> calcium chloride + water + CO2

Question 31

What is the method for collecting CO2?

Answer 31

Upwards displacement Also called downward delivery

Question 32

What is the test for CO 2?

Answer 32

Turns limewater cloudy

Question 33

What type of reaction uses heat to break down a compound?

Answer 33

Thermal decomposition

Question 34

List facts about CO2?

Answer 34

``` Part of carbon cycle Used in photosynthesis Given out when burning fossil fuels A greenhouse gas Contributes to climate change Dense ```

Question 35

What is oxidation?

Answer 35

Gain of oxygen Loss of electrons OiL

Question 36

What is reduction?

Answer 36

Loss of oxygen Gain of electrons RiG

Question 37

What is a redox reaction?

Answer 37

Both gain and loss of oxygen or electrons