Atomic Structure and the Periodic Table

Question 1

Where is the nucleus, what does it contain and what is its charge?

Answer 1

The nucleus is in the centre of the cell, it contains proteins and neutrons and it has a positive charge.

Question 2

What did Rutherford discover?

Answer 2

The nucleus and protons

Question 3

What did Chadwick discover?

Answer 3

Neutrons

Question 4

What did Bohr discover?

Answer 4

The current nuclear model

Question 5

What did Newland do?

Answer 5

He grouped things into octaves and order by patterns and arranged by mass

Question 6

What did Mendeleev do?

Answer 6

He arranged by mass but left gaps in his periodic table to predict the properties of undiscovered elements

Question 7

Properties of noble gases

Answer 7

Have a full outer shell

Unreactive because they don’t gain or lose electrons

Question 8

Properties of halogens

Answer 8

Diatomic
Highly reactive
Reactivity decreases as you go down the group
The boiling points increases as you go down the group
React violently with Group 1 elements

Question 9

Properties of alkali metals

Answer 9

Reacts with water
metal + water —> metal hydroxide 
that’s an exothermic reaction - releases lots of hydrogen gas (which causes fizzing)
Reactivity increases as you go down
Booking points decreases as you go down

Question 10

Properties of transition metals

Answer 10

Hard
Shiny
Conductors