Chapter 5

Question 1

What are atoms?

Answer 1

Atoms make up everything

Question 2

What are elements?

Answer 2

They are atoms with the same amount of protons (in the nucleus)

Question 3

The nucleus is made of….

Answer 3

Protons and neutrons.

Question 4

Electron shells consist of..

Answer 4

Electrons

Question 5

The maximum number of electrons in each shell is…

Answer 5

2n(squared)

Question 6

Electrons =

Answer 6

Protons

Question 7

Electrons configuration…

Answer 7

Shows how the electrons are arranged. (Ground state)

Question 8

The atomic number is …

Answer 8

The number if protons.

Question 9

o

Answer 9

Oxygen

Question 10

Li

Answer 10

Lithium

Question 11

Na

Answer 11

Sodium

Question 12

N

Answer 12

Nitrogen

Question 13

Ten periodic table is :

Answer 13

In order of increasing atomic number

Question 14

Periods are…

Answer 14

Rows (horizontal)

Question 15

Groups are…

Answer 15

Columns (vertical)

Question 16

Group 1

Answer 16

Alkali metals

Question 17

Group 2

Answer 17

Alkaline earths

Question 18

Group 17

Answer 18

Halogens

Question 19

Group 18

Answer 19

Noble gases (inert gases)

Question 20

Groups 3-12

Answer 20

The transition metals

Question 21

The period number is the same as the number of

Answer 21

Shells occupied by the electrons

Question 22

The groups usually have the last digit of

Answer 22

Electrons

Eg. Group 12 has 2 electrons in the outer shell and group 18 has 8 in the outer shell

Question 23

Sodium (Na) has 11 electrons and the configuration is 2,8,1.

Answer 23

So period 3 group 1 (there are 3 shells so period 3 and the last digit is 1 so group 1)

Question 24

Lanthanides and actinides

Answer 24

Are the bottom periods of the periodic table

Question 25

Protons

Answer 25

Positively charged

Question 26

Neutrons

Answer 26

Neutral charge

Question 27

Electrons

Answer 27

Negatively charged

Question 28

Ions are…

Answer 28

Number of electrons don’t equal the number of protons