Further additional chemistry

Which group have the most vigorous reactions as you go down the group?

Group 1 ☺
How was Newland's law of octaves arranged? and why?

Arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements.
What did Mendeleev do correct that made his periodic table good?
- Put things in order of atomic mass
- left gaps- for undiscovered elements
Why are group 1 electrons more reactive as you go down?

Because as you go down there are more shells. This means the 1 electron is further away from the positive nucleus this means that there is a weaker attraction so it can easily be lost and react with another substance
How do we test for Group 1 Alkali metals and what are there common traits?
- Test for hydrogen by flame "pop" test
- Low boiling and melting point as you go down the grid.
- They are also more reactive
What is another name for the group 7 elements?

Halogen
4 facts about the Group 7
- Make a negative ion
- Take 2 atoms to make the molecule (O2)
- Higher melting/ Boiling point
- Reactivity decreases as you go down
What do transition metals form?

Coloured Compounds
What colour compound does copper make ?

Blue
What colour compond does Iron II make?

Light green
What colour compond does Iron III make?

Orange/Brown

Author

annielod

330800

Card Set

Further additional chemistry

Description

annis

Updated

2017-04-26T13:00:27Z

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