Topic 1 Atomic Structure

Question 1

Relative mass of proton

Answer 1

1

Question 2

Relative mass of neutron

Answer 2

1

Question 3

Relative mass of electron

Answer 3

1/1840

Question 4

Relative charge of proton

Answer 4

+

Question 5

Relative charge of neutron

Answer 5

1 (no charge)

Question 6

Relative charge of electron

Answer 6

-

Question 7

Where is proton found

Answer 7

Nucleus

Question 8

Where is neutron found

Answer 8

Nucleus

Question 9

Where are electrons found

Answer 9

Outer shell(s)

Question 10

Atomic number

Answer 10

Number of protons in an atom (bottom number)

Question 11

Mass number

Answer 11

Total number of protons and neutrons in an atom (top number)

Question 12

Element

Answer 12

Substance that has one type of atom and can’t be broken down into anything simpler

Question 13

How to calculate number of protons in an atom

Answer 13

Atomic number (bottom number)

Question 14

How to calculate number of electrons in an atom

Answer 14

Atomic number (bottom number)

Question 15

How to calculate number of neutrons in an atom

Answer 15

Mass number - atomic number (top - bottom)

Question 16

Ions

Answer 16

Atoms with a charge (electrons change this)

Question 17

Cations

Answer 17

Ions with a positive charge

Question 18

Anions

Answer 18

Ions with a negative charge

Question 19

Atoms radius

Answer 19

0.1nm

Question 20

What size is the nucleus of an atom

Answer 20

Less than 1x10 to the power of -14

Question 21

Compound

Answer 21

Two or more elements chemically combined

Question 22

Isotopes

Answer 22

Atoms that have the same number of protons but different neutrons (therefore different mass number)

Question 23

How to find relative atomic mass (RAM)

Answer 23

(Power of first number x percentage of first number) + (power of second number x percentage of second number) /100

Question 24

Who made the plum pudding model and what does it look like?

Answer 24

JJ Thomson, electrons through a positive sphere, atoms solid throughout

Question 25

What was Rutherford’s model?

Answer 25

Rutherford made a model of the nucleus being surrounded by electrons

Question 26

Who made the modern model, why, and what did it look like?

Answer 26

Chadwick made the modern day model as he discovered the electron. It has electrons in a shell with a positive nucleus and space between the shell is the vacuum

Question 27

What is the structure of an atom?

Answer 27

Central positively charged nucleus containing protons and neutrons, surrounded by orbiting electrons in shells