Atomic Structure

Question 0

What did J.J Thomson discover?

Answer 0

Even smaller particles can be pulled out of atoms using a very high voltage - the discovery of the electron

Question 1

What idea was put forward byJohn Dalton?

Answer 1

Everything is made from atoms.

Question 2

What did Ernest Rutherford discover?

Answer 2

Atoms are not solid but they have a very dense centre called a nucleus.

Question 3

What did Niels Bohr discover?

Answer 3

‘The solar system atom’ - the nucleus in the centre (sun) with the electrons orbiting around it (planets)

Question 4

What type of mass do atoms have?

Answer 4

Low

Question 5

What’s it the middle of an atom?

Answer 5

Nucleus

Question 6

What charge does a nucleus have?

Answer 6

Postive

Question 7

What is a nucleus made up of?

Answer 7

Protons and neutrons

Question 8

What charge do protons have?

Answer 8

Positive

Question 9

What charge do neutrons have?

Answer 9

Neutral

Question 10

What charge do electrons have?

Answer 10

Negative

Question 11

What is the space around a nucleus filled with?

Answer 11

Electrons

Question 12

What are electrons arranged in?

Answer 12

Shells

Question 13

What charge does an atom have?

Answer 13

No charge

Question 14

What is an element?

Answer 14

Something that cannot be broken down chemically and contains only one type of atom

Question 15

What is a compound?

Answer 15

Something that contains at least two elements that are chemically combined

Question 16

In the periodic table, what number is underneath the element?

Answer 16

Atomic number

Question 17

What is atomic number?

Answer 17

Number of protons in the atom

Question 18

What is an isotope?

Answer 18

Elements that have same atomic number but different mass number

Question 19

What is the mass number?

Answer 19

Total number of protons and neutrons in an atom

Question 20

Isotopes have the…

Answer 20

Same atomic number but a different mass number

Question 21

How many electrons are in the first shell?

Answer 21

2

Question 22

How many electrons can an outer shell hold in order to become full?

Answer 22

8

Question 23

Elements in the same group have the same number of…

Answer 23

Electrons

Question 24

What is the relative mass of a proton?

Answer 24

1

Question 25

What is the relative mass of a neutron?

Answer 25

1

Question 26

What is the relative mass of an electron?

Answer 26

0.0005

Question 27

What is the relative charge of a proton?

Answer 27

+1

Question 28

What is the relative charge of a neutron?

Answer 28

0

Question 29

What is the relative charge of an electron?

Answer 29

-1

Question 30

What is the radius of an atom?

Answer 30

10-10m

Question 31

What is the mass of an atom?

Answer 31

10-23g

Question 32

What does the number of the period (row) tell us?

Answer 32

Number of electron shells

Question 33

What does the number of the group (column) tell us?

Answer 33

How many electrons are in the outer shell