The atom and atomic structure

Question 1

Define the term matter

Give an example :3

Answer 1

Matter is made of atoms, and atoms make up everything. Eg: Solid, Liquid, Gas

Question 2

Define the term atom

Give an example

Answer 2

An atom makes up everything :3

Such as a pen))

Question 3

Describe how substances are composed of atoms

Answer 3

A substance is composed of 2 or more atoms bonded

Question 4

Summarise the development of the atomic model

(be prepared to say a lot)

Answer 4

John Dalton: Solid sphere theory- said atoms were indivisible

J.J Thomson: Plum pudding model- found electrons and said the electrons are scattered in the atom

Ernest Rutherford: Discovered the proton and created the nuclear model

Niels Bohr: Discovered the positive and negative charge, added onfrom Rutherford

Question 5

Recall the names of the scientists who’ve made contributions to the atom development

Answer 5

John Bohr, J.J Thomson, Ernest Rutherford, Niels Bohr

Question 6

Describe the models of the atoms that were proposed by different scientists through history

Answer 6

John Dalton: Solid sphere theory- said atoms were indivisible

J.J Thomson: Plum pudding model- found electrons and said the electrons are scattered in the atom

Ernest Rutherford: Discovered the proton and created the nuclear model

Niels Bohr: Discovered the positive and negative charge, added onfrom Rutherford

Question 7

Recognise that atoms are different for each element

Answer 7

All atoms are different

Question 8

Recall that atoms are neutrally charged overall and understand that the number of protons must equal the number of electrons

Answer 8

(just know this)

Question 9

Identify the different subatomic particles within an atom

Answer 9

Protons, Neutrons and Electrons

Question 10

Describe the structure of an atom and where each subatomic particle can be found

Answer 10

insert electron shell diagram