Atoms And The Prriodic Table Part 2

Question 1

Explain why Mendeleev’ periodic table was eventually accepted by other scientists

Answer 1

Elements were discovered which filled his gaps and matched the properties he predicted

Question 2

In terms of electrons, what do group 1 elements have in common?

Answer 2

1 electrons in the outer shell

Question 3

In terms of electrons, what do group 7 elements have in common

Answer 3

7 electrons in the outer shell

Question 4

In terms of electrons, what do group 0 elements have in common?

Answer 4

Full outer shell

Question 5

What is more reactive, lithium or sodium?

Answer 5

Sodium

Question 6

What is more reactive, chlorine or bromine?

Answer 6

Chlorine

Question 7

Define inert

Answer 7

Unreactive

Question 8

Explain why the noble gases are inert

Answer 8

They have full outer shells, so Do not need to gain or lose electrons

Question 9

What is a trend?

Answer 9

A pattern in properties

Question 10

State the trend in the melting points of alkali metals

Answer 10

Gets lower down the group