Group 2
Explain what happen about atomic radius in group 2
Atomic radius increase going down group because number of proton increases
How is electronegativity trend in halogen?
electronegativity decrease down the group
What is the colour of magnesium in flame test
bright white
What is the product between halogen and sodium?
sodium halide
Explain about melting point in group 2?
going down group decrease down the group
How is halogen exist in the air?
exist in diatomic molecules
What is the colour of barium in flame test
pale green
What is the compound in bleach?
chlorate ion
How hydroxide group in group 2
going down increase more soluble
How is melting and boiling point of group halogen?
increase going down group
What is the product of magnesium and oxygen
magnesium oxide
is it chlorine can replacement fluorine?
no it isnt
How is sulphate react with group 2
goind down decrease
How about van der waals force in group 7?
van der waals increase going down group
What is the product of barium and water?
barium hydroxide and hydrogen
what is element in batteries?
lithium
What is function of barium sulphate
For X ray
What is bromine state in room temperature?
liquid
What is the product of barium with carbonate?
barium oxide and carbon dioxide
What is the function of luorine?
toothpaste