The Periodic Table

Question 1

What do elements in a column have in common? What is a column technically called?

Answer 1

Similar chemical properties

Groups

Question 2

What does the group number of an element show?

Answer 2

The number of e- in its outer shell

Question 3

What does the row of the periodic table show? What is a row technically called?

Answer 3

How many shells an atom has

Period

Question 4

Metal oxides are..

Answer 4

basic

Question 5

Non-metal oxides are…

Answer 5

acidic

Question 6

Why does reactivity down a group of metals increase?

Answer 6

The nucleus has a lower magnetic affect on e- in outer shells
As you go down the group there are more shells which get further away
The inner shells shield the e- from the attraction of the nucleus
Therefore it’s easier for the atom to give its e- away and react

Question 7

Why does reactivity decrease down the group in non-metals

Answer 7

As you go down the group there are more shells
The nucleus has a lower maginetic pull on the e- in these shells because they are further away
The inner shells shield the e- from attraction of the nucleus
Therefore it is harder to attract electrons from other atoms and react

Question 8

Define displacement reaction

Answer 8

A reaction where a more reactive element displaces a less reactive element from its compound

Question 9

What colour and state are the halogens?

Answer 9

Chlorine: green gas
Bromine: red-brown liquid
Iodine: dark grey solid

Question 10

What is a redox reaction?

Answer 10

A reaction where one substance loses electrons at the same time as another gains electrons

Question 11

What is the mnemonic for redox ?

Answer 11

Oxidation
Is
Loss (of electrons) 
Reduction 
Is
Gain (of electrons)