Half term -1

Question 1

What are 3 conclusions drawn from the alpha scattering experiments?

Answer 1

1. Most of the atom was empty space.
   2.There is a concentrated area of positive charge in the atom.
   3.Atoms contain a very small, heavy mass.

Question 2

Who discovered the electron?

Answer 2

J. J Thompson

Question 3

Who discovered the proton?

Answer 3

Ernest Rutherford

Question 4

Who discovered the neutron?

Answer 4

James Chadwick

Question 5

When was the proton discovered?

Answer 5

1917

Question 6

When was the electron discovered?

Answer 6

1897

Question 7

When was the neutron discovered?

Answer 7

1932

Question 8

Where does the word ‘atom’ come from?

Answer 8

The Greek word ‘atomos’ meaning indivisible

Question 9

What is the relative mass of a proton?

Answer 9

1

Question 10

What is the relative mass of a neutron?

Answer 10

1

Question 11

What is the relative mass of an electron?

Answer 11

0 (negligible)

Question 12

What is the relative charge of a proton?

Answer 12

+1

Question 13

What is the relative charge of a neutron?

Answer 13

No charge

Question 14

What is the relative charge of an electron?

Answer 14

-1

Question 15

How do you calculate the amount of protons in an atom?

Answer 15

the atomic number

Question 16

How do you calculate the amount of neutrons in an atom?

Answer 16

Mass number-atomic number

Question 17

How do you calculate the number of electrons in an atom?

Answer 17

The atomic number

Question 18

What are isotopes?

Answer 18

atoms with the same number of protons but a different number of neutrons
They have the same atomic number but a different mass number

Question 19

What subatomic particle determines which type of atom an atom is?

Answer 19

protons (all atoms with 6 protons are carbon atoms)

Question 20

What are group 1 elements called?

Answer 20

alkali metals

Question 21

What are group 7 elements called?

Answer 21

Halogens

Question 22

What are group 0 elements called?

Answer 22

Noble gases

Question 23

What are group 2 elements called?

Answer 23

alkali earth metals

Question 24

What are the 3 types of bonding?

Answer 24

Covalent
Ionic
Metallic

Question 25

Covalent bonding is where…

Answer 25

atoms share electrons so they have full outer shells

Question 26

Does covalent bonding happen between metals or non-metals?

Answer 26

Non metals

Question 27

ionic bonding is where…

Answer 27

electrons are transferred between atoms so that they have a full outer shell

Question 28

Does ionic bonding happen between metals or non-metals

Answer 28

between a metal and a non-metal

Question 29

Does metallic bonding happen between metals or non-metals

Answer 29

metals

Question 30

How does the boiling point of noble gases change as you move down the group?

Answer 30

it increases

Question 31

What is the trend in melting point as you move down the alkali metals?

Answer 31

the melting point decreases

Question 32

As you move down the alkali metals what is the trend in reactivity?

Answer 32

They get more reactive as you move down the group

Question 33

What is the trend in melting point as you move down the halogens?

Answer 33

the melting point increases as you move down the group

Question 34

What is the trend in reactivity as you move down the halogens/

Answer 34

The reactivity decreases