Elements,atoms and compound Mixtures

Question 1

All elements of the periodic table have…

Answer 1

Atoms

Question 2

An element is made up of..

Answer 2

One atom only

Question 3

How are elements made?

Answer 3

Nuclear reactions

Question 4

Protons mass

Answer 4

1

Question 5

Neutron mass

Answer 5

1

Question 6

Electron mass

Answer 6

Almost 0

Question 7

Protons charge

Answer 7

+1

Question 8

Neutron charge

Answer 8

0

Question 9

Election charge

Answer 9

-1

Question 10

Atoms are made up of what

Answer 10

Protons
Neutrons
Electrons

Question 11

The first shell of an atom contains how many electrons

Answer 11

2 electrons

Question 12

The second shell of an atom contains how many electrons

Answer 12

8 electrons

Question 13

The third shell of an atom contains how many electrons

Answer 13

8 electrons

Question 14

Where is the nucleus located in an atom?

Answer 14

Middle of the atom covered by the shells

Question 15

What is an isotope

Answer 15

An atom that has different number of neutrons from the majority of the atom

Question 16

Mono meaning

Answer 16

One

Question 17

Di meaning

Answer 17

Two

Question 18

Tri meaning

Answer 18

Three

Question 19

-ide meaning

Answer 19

Non metal

Question 20

-ate meaning

Answer 20

Non metal + oxygen

Question 21

Diatomic meaning

Answer 21

Two atoms

Question 22

12 - name
C
Carbon
6

Answer 22

Protons & neutrons in the atom

Question 23

12
C - name
Carbon
6

Answer 23

Atomic symbol

Question 24

12
C
Carbon - name
6

Answer 24

Atomic name

Question 25

12 C Carbon 6 - name

Answer 25

Elections

Question 26

How to find the amount of neutrons in an atom

Answer 26

Mass number - proton number

Question 27

Group 1 metals are known as

Answer 27

Alkali metals

Question 28

Group 7 metals also known as

Answer 28

Halogens s

Question 29

Group 7 are

Answer 29

Very reactive

Question 30

How many electrons do group 7 have in there outer shell

Answer 30

7

Question 31

Are transition metals less or more reactive and why

Answer 31

Less because they corrode slowly

Question 32

Corrode meaning

Answer 32

Destroy / damage

Question 33

What is an element

Answer 33

A substance that cannot be broken down into anything simpler

Question 34

What is a Mixture

Answer 34

Two or more substances that are mixed together - not chemically bonded -in fixed proportions

Question 35

Compound meaning

Answer 35

Consists of two or more elements chemically combined

Question 36

“ atoms are tiny solid spheres”

Answer 36

Jhon dalton 1803

Question 37

“ atoms contain negatively charged particles called electrons”

Answer 37

JJ Thomson 1897

Question 38

“ atoms have a nucleus which is positively charged”

Answer 38

Ernest Rutherford 1911

Question 39

“ electrons are in energy shells around the nucleus”

Answer 39

Niels Bohr 1922

Question 40

What is potable water

Answer 40

Water that is safe to drink

Question 41

Sludge is

Answer 41

Human waste