C1 - Modern Periodic Table

Question 1

What are all materials made of?

Answer 1

All around 100(118 in modern day) elements

Question 2

How are elements laid out in the periodic table?

Answer 2

In increasing atomic(proton) number.Arranging the elements like this means there are repeating patterns in the properties of the elements(The properties are said to occur periodically,hence the name periodic table)

Question 3

Where are metals found in the periodic table?

Answer 3

To the left of the periodic table

Question 4

Where are non-metals found in the periodic table?

Answer 4

To the right of the periodic table

Question 5

What do elements with similar properties form in the periodic table?

Answer 5

They form columns

Question 6

What are the vertical columns called?

Answer 6

Groups

Question 7

What does the group number tell you in the periodic table?

Answer 7

It tells you how many electrons there are in the outer shell,for example group 1 elements have one electron and group 7 elements have 7 electrons in their outer shell.An exception to this rule is group 0,for example helium having 2 electrons in its outer shell.

(This is useful as the way atoms react depends upon the number of electrons in their outer shell.So all elements in the same group are likely to react the same way)

Question 8

What are the rows in the periodic table called?

Answer 8

They are called periods,with each new period representing another full shell of electrons

Question 9

What can you do if you know the properties of one element?

Answer 9

1) You can predict properties of other elements in their group.

(For example in group 1 they are all metals and they react in a similar way)

2) You can also make predictions in the trends of reactivity

(For example in group 1 the elements react more vigorously as you go down the group and in group 7 the reactivity decreases as you go down the group)