Periodic Table

Question 1

What is meant by an “Element”?

Answer 1

A substance made of only one type of atom.

Question 2

What are the three sub-atomic particles?

Answer 2

1. Proton
2. Neutron
3. Electron

Question 2

What is the charge on a Proton?

Answer 2

Positive

Question 3

What is the charge on a Neutron?

Answer 3

No charge

Question 4

What is the charge on an Electron?

Answer 4

Negative

Question 5

What is the dense small core of an atom called?

Answer 5

The Nucleus

Question 6

Which sub-atomic particles are found in the Nucleus?

Answer 6

Protons & Neutrons

Question 7

What type of substances are shown on the Periodic Table

Answer 7

Elements

Question 8

What are the rows of the Periodic table known as?

Answer 8

Periods

Question 9

What are the columns of the Periodic table known as?

Answer 9

Groups

Question 10

What is important about the ‘groups’ of the periodic table?

Answer 10

The groups show elements of similar properties.

Question 11

What is the name of Group 1 of the periodic table?

Answer 11

Alkali Metals

Question 12

What is the name of Group 2 of the periodic table?

Answer 12

Alkali Earth Metals

Question 13

What is the name of the large block of element in the middle of the periodic table?

Answer 13

Transition metals

Question 14

What is the name of Group 7 on the periodic table?

Answer 14

Halogens

Question 15

What is the name of Group 8 on the periodic table?

Answer 15

Noble Gases

Question 16

In an Element’s symbol on the periodic table, what does the ‘bottom’ number represent?

Answer 16

The ‘Atomic number’ - The number of protons in the atom.

Question 17

In an Element’s symbol on the periodic table, what does the ‘top’ number represent?

Answer 17

The ‘Mass number’ - The total number of protons & neutrons in the atom.

Question 18

What is meant by a “Molecule”?

Answer 18

Two or more atoms chemically joined together.

Question 19

What does a ‘subscript’ number mean in a molecule? e.g. H₂O

Answer 19

The subcript tells you how many atoms of the previous element is present in the molecule. In H₂O there is 2 hydrogen and 1 oxygen.

Question 20

What is meant by the “Reactivity” of an element?

Answer 20

A measure of how quickly the element reacts.

Question 21

On the left hand side of the periodic table (e.g. Alkali metals), does reactivity increase or decrease down the groups?

Answer 21

Increase

Question 22

On the right hand side of the periodic table (e.g. Halogens), does reactivity increase or decrease down the groups?

Answer 22

Decrease

Question 23

Where are metals found on the periodic table?

Answer 23

To the left of the ‘staircase’.

Question 24

Where are non-metals found on the periodic table?

Answer 24

To the right of the 'staircase'.

Question 25

What is meant by a "Compound"?

Answer 25

Two (or more) different types of atoms which are chemically joined together.

Question 26

What does the -ide ending of a compound mean? e.g. sodium chloride

Answer 26

Compoud made of two elements only. (A metal and a non-metal)

Question 27

What does the -ate ending of a compound mean? e.g. potassium chlorate

Answer 27

Compoud made of three elements; a metal and a non-metal and oxygen.