Revision Workbook

Question 1

Definition & example of an atom

Answer 1

Basic units of matter that cannot be broken down
&
Defining structure of elements

Example - carbon

Question 2

Definition of element

Answer 2

A substance consisting of Atoms which all contain the same number of protons or the same atomic number - cannot be split up into simpler substances

Question 3

Example of element

Answer 3

Magnesium

Question 4

What is an ion

Answer 4

An electrically charged atom, (or group of atoms)

Formed by the loss or gain of 1 or more electrons

Question 5

Example of ion

Answer 5

Sodium - Na+

Question 6

Definition and example of matter

Answer 6

Everything around us that
Has mass
Occupies space

An apple!

Question 7

definition of molecule

Answer 7

two or more atoms joined together chemically

not all molecules are compounds

Question 8

definition of compound

Answer 8

a molecule containing at least two different elements

all compounds are molecules

Question 9

ex molecule

Answer 9

oxygen 02

Question 10

ex compound

Answer 10

H2O

Question 11

definition of hydrophilic molecule

Answer 11

‘water loving’ polar molecules

ability to interact with (dissolve in) water

Question 12

definition of hydrophobic molecule

Answer 12

‘water hating’ non-polar molecule

inability to interact with (dissolve in) water

Question 13

example of hydrophilic molecule

Answer 13

salt

Question 14

ex of hydrophobic molecule

Answer 14

fatty acids

Question 15

which 4 elements are the major constituents of the human body

Answer 15

carbon
hydrogen
oxygen
nitrogen - CHON

Question 16

subatomic particles in an atom are

Answer 16

protons
neutrons
electrons

Question 17

what forms the nucleus of an atom

Answer 17

protons and neutrons

Question 18

what part of an atom do protons and neutrons form

Answer 18

nucleus

Question 19

periodic table is a list of all the known

Answer 19

elements

Question 20

the periodic table is a list of the known elements arranged into periods that show us which elements have similar XXXX and XXXX properties

Answer 20

similar reactivity and physical properties

Question 21

what charge do neutrons have

Answer 21

no charge

Question 22

what charge do protons have

Answer 22

positive

Question 23

what charge do electrons have

Answer 23

negative

Question 24

where are electrons situated

Answer 24

buzzing around outside of nucleus

Question 25

electrons move in groups around the nucleus called

Answer 25

electron shells

Question 26

a stable element will have an equal number of

Answer 26

electrons and protons

Question 27

what type of overall charge will a stable element have

Answer 27

a neutral charge

Question 28

the letter in the centre of an element in the periodic table is the

Answer 28

symbol

Question 29

the number in the top left hand corner of an element is the

Answer 29

atomic number

Question 30

underneath the symbol of the element in periodic table is the

Answer 30

name

Question 31

the big number at the bottom of an element in the periodic table is the

Answer 31

atomic weight/mass

Question 32

symbol for hydrogen

Answer 32

H

Question 33

symbol for sulfur

Answer 33

S

Question 34

symbol for iron

Answer 34

Fe

Question 35

Carbon symbol

Answer 35

C

Question 36

potassium symbol

Answer 36

K

Question 37

Nitrogen symbol

Answer 37

N

Question 38

sodium symbol

Answer 38

Na

Question 39

oxygen symbol

Answer 39

O2

Question 40

magnesium symbol

Answer 40

Mg