Periodic Table

Question 1

What is a period?

Answer 1

Each row is a period. There are seven periods

Question 2

What is a family?

Answer 2

Another name for a family is a group. Each column is a group

Question 3

What are the 3 catégorie that elements are classified in?

Answer 3

Metals, mon metals and metalloids

Question 4

What are properties of metals?

Answer 4

Good conductors of heat and electricity 
Malleable and ductile 
Lustre 
React with acid 
Solids at room temp expect mercury

Question 5

Where are metals located on the periodic table?

Answer 5

On the left of the staircase

Question 6

What are properties of non metals?

Answer 6

Poor conductors of heat and electricity
Not malleable and ductile 
Not lustrous 
Don’t react with acid 
Gasses at room temp expect hydrogen

Question 7

Where are non metals located on the periodic table?

Answer 7

To the right of the staircase

Question 8

What are metalloids?

Answer 8

Show some characteristics Of metals and some of non metals

Question 9

Where are the metalloids located?

Answer 9

On the staircase

Question 10

In a period all the atoms have the same number of….

Answer 10

SHELLS! for example, if the atom in the second period, it will have two shells

Question 11

All the atoms in A family have the same number of…

Answer 11

VALENCE ELECTRONS!

Question 12

What is a valence electron?

Answer 12

It is the electron in The outer most shell of an atom

Question 13

Name properties of alkali metals.

Answer 13

Soft, highly reactive
Must be stored in oil because they are very reactive and can react with the moisture in the air
They are never found in their elemental state but instead they exist as compounds

Question 14

What are alkaline earth metals?

Answer 14

Very malleable and reactive
Burn easily
Nor found in their elemental state
They can be exposed to air

Question 15

What are noble gases?

Answer 15

Very stable which means they don’t react

Found in their elemental state in nature

Question 16

What are halogens?

Answer 16

Non metals and they react easily

Disinfectants

Question 17

What is the atomic number?

Answer 17

The number of protons (and electrons)

Question 18

What is the relative atomic mass?

Answer 18

nUmber on the bottom. Reference to carbon

Question 19

What is the atomic mass?

Answer 19

Sum of protons and neutrons

Question 20

What do the three isotope hydrogens have?

Answer 20

All have 1 proton

Question 21

the three forms of hydrogen differ only in the number of what?

Answer 21

in their number of neutrons which affects their mass number

Question 22

how do you write an isotope?

Answer 22

putting the name of element dash the mass number

Question 23

what are the 4 ways of representing atoms?

Answer 23

Louis notation, Rutherford bohr atomic model, the simplified atomic model, ball and stick model

Question 24

what are the rules for the first twenty elements?

Answer 24

• the first shell can contain a maximum of 2 electrons
• the second can contain a max of 8 electrons
• the third can contain a max of 18

Question 25

what is the Louis notation?

Answer 25

representation of the atom where only valence electrons are drawn. the valence electrons are placed around the symbol

Question 26

how do you draw the Rutherford Bohr model?

Answer 26

how many protons there are in the middle with a plus. the number of shells and the number of electrons

Question 27

how do you Draw the simplified atomic model?

Answer 27

in the nucleus you put the number of protons with a p plus and the number of neutrons followed by N. the arcs represent the electron shells and you also write down the number of electrons in each shell followed by e-

Question 28

how do you draw the ball and stick model?

Answer 28

the atom is represented as a ball and its bonds with other atoms are shown with sticks. the size of the ball is proportional to the number of electron shells in the atom.