1.6 The periodic Table Flashcards
(24 cards)
What are the vertical columns in the periodic table called?
Groups
What are the horizontal rows in the periodic table called?
Periods
What is the trend in ionisation energy across a period?
It generally increases from left to right or across a period
What is the trend in electronegativity across a period?
It generally increases from left to right or across a period
What is the trend in ionisation energy down a group?
The ionisation energy decreases down a group
What is the trend in electronegativity down a group?
The electronegativity decreases down a group
Melting and boiling points are effected by …
The structure of the atoms i.e. simple molecular, giant covalent
Oxidation is the loss of …
Electrons
Oxidation is the gain of …
Oxygen
Reduction is the loss of …
Oxygen
Reduction is the gain of …
Electrons
What is the group 1 reaction trend with water?
The vigour of each reaction increases as you go down the group
What is the group 2 reaction trend with water?
The same trend as group 1, however overall vigour of each reaction is much less than all equivalent group 1 elements
In general metal oxides are … and non-metal oxides are …
Basic
Acidic
What colours do these elements go when burnt:
Li =
Na =
K =
Mg =
Ca =
Sr =
Ba =
Li = red
Na = orange-yellow
K = lilac
Mg = no colour
Ca = brick red
Sr = crimson
Ba = apple green
Are all group 1 compounds soluble?
Yes
Are all group 2 compounds soluble?
No, but some are
Volatility
Describes how readily a substance vaporises
When you react silver nitrate with chlorine, bromine and iodine what observation can be made?
Chlorine, produces white precipitate
Bromine, produces cream precipitate
Iodine, produces pale yellow precipitate
Why is chlorine used in the treatment of water?
Chlorine is used to kill the bacteria and other microbes in the water however it can react to from other hydrocarbons which can cause liver cancer
Why is fluorine used in the treatment of water?
Fluoride prevents cavities in teeth, and it has no apparent adverse effects
Why are people against fluorine and chlorine treatment of water?
They claim it is mass meidication
Why are people against fluorine and chlorine treatment of water?
They claim it is mass medication
What is gravimetric analysis?
It finds the amount of an analyte through determining the measurement of mass
