8F Flashcards
How is the periodic table arranged?
Arrange so similar properties elements are in the same vertical group
What properties do the alkaline metals have?
The reactive water forming an alkalis solution, plus hydrogen the reactivity increases down the group
What properties do semi metals have?
There between metals and nonmetals
Noble gases properties
Very unreactive, do not easily form compounds
Reactive non metals properties
They are not metal and they are reactive
What is a physical change?
Change when no use substances are formedE.g water to ice
Physical properties
Melting point, freezing points, boiling points, malleable
Chemical change, meaning
New substances are formedE.g hydrogen +chlorine - —hydrogen chloride
Chemical properties
If the thing is asthma, alkaline, what’s the PH colour change
