Paper 1- Unit 1 Atoms, Ions and the Periodic Table

Question 1

What is the mass of a neutron?

Answer 1

1

Question 2

What is the mass of an electron?

Answer 2

Very small

1/1800

Question 3

What is the mass of a proton?

Answer 3

1

Question 4

Where do you find the electrons?

Answer 4

In energy shells/levels
Orbiting
Around the nucleus

Question 5

Where do you find neutrons?

Answer 5

In the nucleus of an atom

Question 6

Where do you find protons?

Answer 6

In the nucleus of an atom

Question 7

Charge of proton

Answer 7

positive 1

Question 8

charge of neutron

Answer 8

neutral (no charge)

Question 9

charge of electron

Answer 9

negative 1

Question 10

How do you find out the number of protons in an element?

Answer 10

atomic number

Question 11

How do you find out the number of neutrons in an element?

Answer 11

mass number - atomic number

Question 12

How do you find out the number of electrons in an element?

Answer 12

atomic number

Question 13

What is the definition of an element?

Answer 13

A substance made up of one type of atom

Question 14

What is the definition of a compound?

Answer 14

A substance made up of two or more different types of atoms

That are chemically bonded together

Question 15

Describe the plum pudding model of an atom

Answer 15

Large positive sphere

with small negative electrons inside

Question 16

What is an ion?

Answer 16

Charged particle

formed by gaining of losing electrons

Question 17

If an atom loses electrons…

Answer 17

it becomes a positive ions

as it has more protons than electrons

Question 18

If an atom gains electrons…

Answer 18

it becomes negative

as it has more electrons than protons

Question 19

atoms are neutral because…

Answer 19

same amount of positive protons

negative electrons

Question 20

The transition metals can be found…

Answer 20

in the middle of the periodic table

Question 21

Group 0 atoms are unreactive because…

Answer 21

they have a full outer shell

don’t need to gain or lose electrons

Question 22

alkali metal + water –>

Answer 22

alkali metal + water –> metal hydroxide + hydrogen

Question 23

Alkali metals react by…

Answer 23

losing its outer electron

become 1+

Question 24

Alkali metal become ….down the group

Answer 24

gets more reactive

Question 25

Alkali metals get more reactive down a group becuase...

Answer 25

outer electron further away from the nucleus (bigger atom) more easily lost

Question 26

Group 7 elements are known as

Answer 26

halogens

Question 27

Halogens react by

Answer 27

gaining an electron become 1-

Question 28

Halogens become ......reactive down the group

Answer 28

get less reactive

Question 29

Halogens get less reactive down the group because...

Answer 29

outer shell further away from the nucleus (bigger atom) less likely to gain electron

Question 30

The columns in the periodic table are known as...

Answer 30

groups

Question 31

the rows of the periodic table are known as...

Answer 31

periods

Question 32

the periodic table is in order of...

Answer 32

atomic number (proton number)