Group 1 . Alkali metals
Where are Group 1 elements are located in Periodic Table?
On the left side of Periodic Table
Where are Group 7 Elements located in Periodic Table
On the right hand side
Where are Group 0 elements located in Periodic Table?
On the right hand side
How many columns and periods are in Periodic Table
8 groups, 7 periods
What is the reactivity trend of Group 1 elements as you go down? and Why???
Reactivity increases as you go down due to less attraction of nucleus and outer shell of electron
What is reactivity trend in Group 7 elements? Why?
AS you go down reactivity decrease because of attraction between nucleus and electrons and hard to gain electron
What is reactivity trend of Group 0 elements?
just because of They have full outer shell, they do not react
Where are the metals located in Periodic Table?
Left and the middle
Lithium reacts with water to create:
Lithium hydroxide+ hydrogen gas
What is boiling and melting point of Group 7 elements?
it increases as you go down
What is boiling and melting point of Group 0 elements?
as you go down it increases
Who established the Periodic Table
Mendeleyev
Sodium reacts with oxygen to make:
sodium oxide
Which element is liquid, gas and solid in group 7?
bromine is liquid, fluorine and chlorine are gas and iodine is solid
What is helium used for?
Gas baloons andto check the leaking in technology industry
Where are the non-metals located in Periodic Table
right hand side
What is melting and boiling point of Alkali metals?
as you go down it decreases
How many electrons do halogens need to fill their electron shell?
1
Where argon is used ?
Welding metals and lasers for medical purposes
Which group consists of unreactive gases in Periodic Table?
In group 0 , Noble Gases