periodic table Flashcards
1
Q
What are the vertical coloumns in periodic tables called
A
Groups
2
Q
What are horizontal row called in periodic table
A
Periods
3
Q
What happens in a chemical reaction
A
Elements combine to form new substances
4
Q
How do you know is very reactive
A
If an element is keen to combine with other elements it’s said to be very reactive
Group 1, 2 and 7 elements are all pretty reactive
5
Q
How do you know what metals in Group 1 are reactive
A
Group 1 metals get more reactive as you go down the group
This can be seen by how they react with water
Lithium fizzes when it reacts with water (Li)
Rubidium explodes when it reacts with water (Rb)
6
Q
How do you know what non-metals in Group 7 are reactive
A
Group 7 non-metals get less reactive as you go down
