C2: The Periodic Table

Question 1

How did John dalton arrange the elements?

Answer 1

In order of their atomic weights

Question 2

What did Mendeleev do?

Answer 2

He arranged the elements so that a regularly occurring pattern in their properties could be seen

Question 3

Why did Mendeleev leave gaps in the periodic table?

Answer 3

For elements that should exist, but hadnt been discovered yet

Question 4

What is group 0 also known as?

Answer 4

The noble gases

Question 5

What is group 1 also known as?

Answer 5

The alkali metals

Question 6

What happens to the reactivity as you go down group 1?

Answer 6

Increases

Question 7

What happens to the melting and boiling points as you go down group 1?

Answer 7

Decreases

Question 8

What is group 7 also known as?

Answer 8

The halogens

Question 9

What happens to the melting and boiling points as you go down group 7?

Answer 9

Increase

Question 10

What happens to the reactivity as you go down group 7?

Answer 10

Decreases

Question 11

What is a displacement reaction?

Answer 11

A more reactive element will displace a less reactive element

Question 12

What are 4 properties of the transition metals?

Answer 12

Good conductors, hard and strong, dense and high melting points