1
Q
What are the properties of metals?
A
Properties of metals;
- electrical conductors
- heat conductors
- shiny
- high density
- malleable
- sonorous
2
Q
What creates acid rain?
A
O2-NO2- SO2
Non-metal + oxygen - oxide
React with H2O to make rain
Fossil fuels= SO2
Car engines= NO2
3
Q
What is the history of the periodic table?
A
- John Newlands organised elements by atomic mass but it was rejected
- Then Dimitri Mendeleev in 1869 sorted the elements by mass and similar properties. His work was successful
4
Q
Name the elements in group 1
A
Lithium Sodium Potassium Rubidium Caesium Francium
5
Q
How does the reactivity in Group one change?
A
It increases as you move down the group.
6
Q
Name the elements in Group 7?
A
Fluorine Chlorine Bromine Iodine Astatine
7
Q
What are the elements in group 7?
A
Halogens
8
Q
How does the reactivity in group 7 change?
A
It decreases as you move down the group
9
Q
What is potassium + fluorine?
A
Potassium fluorIDE
10
Q
Name the elements in group 0?
A
Helium Neon Argon Krypton Xenon Radon
11
Q
What are the elements in group 0?
A
Noble gases
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