Patterns in the periodic table Flashcards
To revise (8 cards)
1
Q
What is a group in a periodic table?
A
Vertical columns in a periodic table are known as groups. The elements in a group have similar properties and the same number of valence electrons.
2
Q
Name the 6 Group 1 elements
A
- Lithium
- Sodium
- Pottasium
- Rubidium
- Caesium
- Francium
3
Q
Name 6 Group 2 Metals
A
- Beryllium
- Magnesium
- Calcium
- Strontium
- Radium
- Barium
4
Q
Name the properties of Group 1 and Group 2 metals
A
- Soft
- Low Density
- Low melting and boiling point
5
Q
What happens as we move down the group?
A
- Reactivity increases
- Density increases
- Melting & Boiling point decreases
6
Q
Reaction of Group 1 with water and hcl
A
2M + 2H20 ———> 2MOH + H2
2M + 2HCL ————> 2MCL + H2
7
Q
Reaction of Group 2 with water and hcl
A
M + H20 ——-> M(OH)2 + H2
2M + 2HCL ———> MCL2 + H2
8
Q
A