Periodic Table Flashcards
Give three properties of metals
Shiny
good conductors of electricity&heat
Malleable
Sonorous
High density
Give three properties of non metals
Dull
Poor conductor of heat& electricity
Low density
Brittle
Not sonorous
What are group one called
Alkali metals
What is group 7 called
Halogens
What is group 8 called
Noble gases
As you move down what happens to the melting&boiling points in group 1
They decrease as you move down
As you move down what happens to the melting&boiling points in group 7
They increase as you move down
As you move down what happens to the melting&boiling points in group 8
They increase as you move down
What happens to reactivity in group 1
Reactivity increases as you move down
What happens in reactivity in group 7
It decreases as you move down
What happens to reactivity in group 8
It is not reactive but as you move down, it gets slightly more reactive
What 3 things increase as you move down in groups 1,7,8
Density
Atomic mass
Atomic number
2 properties in alkali metals
Solids at room temperature
Very reactive
Good conductors of heat&electricity
Low density
Soft
2 properties of halogens
Very reactive
Low density
Poor conductors of heat and electricity
Solids are brittle
Some are solids, liquids and gases at room temperature
2 properties of noble gases
Unreactive
Poor conductors of heat and electricity
Low density
What happens when alkali metals react with water?
They give off hydrogen gas
What are group 7 elements
Non metals
Coloured (usually poisonous vapour)
What is a displacement reaction
Where a more reactive element displaces the less reactive element
What is a combination of many different metals
Alloys
What does the atomic number tell us
The atomic number tells us how many protons there are in the atom
In an atom, there will be the same number of… and …
Protons and electrons
What does the mass tell us
It tells us the number of protons and neutrons in the nucleus of an atom
Noble gases have a …shell and are … atoms
They have a full shell and are single atoms
They are reactive/Un reactive and do/don’t naturally form compounds
Unreactive, don’t