Chemistry Core A - Products From Rocks: Electron Shells

Question 0

What feature of an atom do the electron shells surround?

Answer 0

The electron shells of an atom surround the nucleus.

Question 1

What feature of an atom do electrons occupy?

Answer 1

Electrons occupy the shells of an atom.

Question 2

What is another name for the electron shells of an atom?

Answer 2

Another name for the electron shells of an atom is energy levels.

Question 3

Are the lowest or highest energy levels of an atom closest to the nucleus?

Answer 3

The lowest energy level of an atom is closest to the nucleus.

Question 4

How many electrons are allowed on the first energy level of an atom?

Answer 4

Two electrons are allowed on the first energy level of an atom.

Question 5

How many electrons are allowed on the second energy level of an atom?

Answer 5

Eight electrons are allowed on the second energy level of an atom.

Question 6

How many electrons are allowed on the third energy level of an atom?

Answer 6

Eight electrons are allowed on the third energy level of an atom.

Question 7

What determines how reactive the outer electron shell of an atom is?

Answer 7

The number of electrons occupying the outer shell of an atom determine how reactive it is.

Question 8

Why are atoms without a full outer shell of electrons reactive?

Answer 8

Atoms without a full outer shell of electrons are reactive so they can acquire a full outer electron shell of electrons by bonding with other atoms or molecules.

Question 9

What is the electronic structure of
1
H
1
Hydrogen 
?

Answer 9

1

Question 10

What is the electronic structure of
4
He
2
Helium
?

Answer 10

2

Question 11

What is the electronic structure of
7
Li
3
Lithium
?

Answer 11

2,1

Question 12

What is the electronic structure of
9
Be
4
Beryllium
?

Answer 12

2,2

Question 13

What is the electronic structure of
11
B
5
Boron
?

Answer 13

2,3

Question 14

What is the electronic structure of
12
C
6
Carbon
?

Answer 14

2,4

Question 15

What is the electronic structure of
14
N
7
Nitrogen
?

Answer 15

2,5

Question 16

What is the electronic structure of
16
O
8
Oxygen
?

Answer 16

2,6

Question 17

What is the electronic structure of
19
F
9
Fluorine
?

Answer 17

2,7

Question 18

What is the electronic structure of
20
Ne
10
Neon
?

Answer 18

2,8

Question 19

What is the electronic structure of
23
Na
11
Sodium
?

Answer 19

2,8,1

Question 20

What is the electronic structure of
24
Mg
12
Magnesium
?

Answer 20

2,8,2

Question 21

What is the electronic structure of
27
Al
13
Aluminium
?

Answer 21

2,8,3

Question 22

What is the electronic structure of
28
Si
14
Silicon
?

Answer 22

2,8,4

Question 23

What is the electronic structure of
31
P
15
Phosphorus 
?

Answer 23

2,8,5

Question 24

What is the electronic structure of
32
S
16
Sulphur 
?

Answer 24

2,8,6

Question 25

What is the electronic structure of
35.5
Cl
17
Chlorine
?

Answer 25

2,8,7

Question 26

What is the electronic structure of
40
Ar
18
Argon
?

Answer 26

2,8,8

Question 27

What is the electronic structure of
39
K
19
Potassium 
?

Answer 27

2,8,8,1

Question 28

What is the electronic structure of
40
Ca
20
Calcium 
?

Answer 28

2,8,8,2