P1 - 1.1 Atoms

Question 1

Where can we find atoms

Answer 1

Atoms are tiny particles that make up everything in life (a bit like cells)

Question 2

How many atoms are in a single cell

Answer 2

100 trillion (they are very small)

Question 3

Describe the structure of an atom

Answer 3

Nucleus in the centre containing protons and neutrons with electrons orbiting the nucleus in rings that we call shells

Question 4

What is the nucleus made up of

Answer 4

Neutrons
Protons

Question 5

Do protons and neutrons have the same mass

Answer 5

Yes, 1

Question 6

How much smaller is an electrons mass compared to protons and neutrons

Answer 6

X2000
0

Question 7

What charge do protons have

Answer 7

+1
Positive

Question 8

What charge do neutrons have

Answer 8

Neutral
0

Question 9

What charge do electrons have

Answer 9

-1
Negative

Question 10

What is the charge and mass of protons

Answer 10

Mass = 1
Charge = +1

Question 11

What is the charge and mass of neutrons

Answer 11

Mass = 1
Charge = 0

Question 12

What is the charge and mass of electrons

Answer 12

Mass = 0
Charge = -1

Question 13

What determines the size of an atoms

Answer 13

Which element it is

Question 14

Roughly what is the radius size of an atom

Answer 14

0.1nm

Question 15

When measuring the radius of an atom where do we measure from

Answer 15

The centre of the nucleus to the outermost electron ring

Question 16

True or False:
An atom has mostly empty space

Answer 16

True

Question 17

How much smaller is the nucleus compared to the atom

Answer 17

X10,000 smaller

Question 18

If an atom has 3 protons and 3 electrons what is the overall charge

Answer 18

0 it is neutral

Question 19

True or False:
Atoms can gain and lose electrons

Answer 19

True

Question 20

If an atom gains/ loses electrons what happens to the overall charge

Answer 20

It is no longer balanced

Question 21

What do we call atoms that have gained/lost electrons

Answer 21

Ions

Question 22

If an atom has gained an electron to become an ion and now has 3 protons and 4 electrons what is the type of ion is becomes

Answer 22

It becomes a negative ion because there are more electrons than protons

Question 23

What is the type of ion:

3 protons
5 electrons

Answer 23

2- Negative ion
(There are 2 more electrons than protons)

Question 24

What is the type of ion:

3 protons
4 electrons

Answer 24

1- Negative ion
(It has one more electron than protons)

Question 25

What is the type of ion:

5 protons
9 electrons

Answer 25

3- Negative ion
(It has 3 more electrons than protons)

Question 26

What causes an ion to be negative

Answer 26

Having more electrons than protons

Question 27

If an atom has lost electrons to become an ion what is the ion called

Answer 27

A positive ion

Question 28

What type of ion is:

3 protons
2 electrons

Answer 28

1+ Positive ion
(It has one more proton than electrons)

Question 29

What type of ion is:

4 protons
2 electrons

Answer 29

2+ Positive ion
( it has 2 more protons)

Question 30

What type of ion is:
7 protons
4 electrons

Answer 30

3+ Positive ion
( it has 3 more protons than electrons)

Question 31

What does each box on the periodic table represent

Answer 31

A different type of atom - which are called elements

Question 32

what are nuclear symbols

Answer 32

The letters on the periodic table which determine which element it is and the relative formula mass and atomic number

Question 33

Where is the atomic number on the periodic table

Answer 33

Bottom number under the nuclear symbol

Question 34

What does the atomic number tell us

Answer 34

How many protons there are in an atom

Question 35

What is the same thing as a nuclear symbol

Answer 35

Elemental symbol

Question 36

What is the top number above the nuclear symbol on the periodic table

Answer 36

Relative atomic mass

Question 37

What is the relative atomic mass, nuclear symbol and atomic number of Oxygen:
16
O
8

Answer 37

Relative atomic mass: 16
Nuclear symbol: O
Atomic number: 8

Question 38

What is in the relative atomic mass

Answer 38

The number of neutrons and protons added together (everything in the nucleus)

Question 39

True or False:
In an atom protons=electrons

Answer 39

True

Question 40

True or False:
In an atom protons=neutrons

Answer 40

False
Protons=electrons

Question 41

How do we work out the number of neutrons in an atom

Answer 41

Relative atomic mass number - atomic number

Question 42

How many neutrons does Lithium have
7
Li
3

Answer 42

relative mass number - atomic number
7-4 = 3
Li has 3 neutrons

Question 43

Electrons orbit the nucleus in e_____ s_____

Answer 43

Electrons orbit the nucleus in energy shells