The Periodic Table Flashcards
What do you call vertical columns on the periodic table
Groups
What are horizontal rows called on the periodic table
Periods
What can we say about the group number and the electrons in the outer shell
The group number is the same as the number of electrons in the outer shell
What does the period number tell us about the shell
The period number is the number of shells of electrons there are
E.g
Group 7 ( bromine ) group 7 Therefore 7 electrons in outer shell
What does group one contains on the periodic table
The most reactive metals
What are group one metals called
Alkali metals
As we go down group one the metals get what
Get more reactive
How many electrons are in the outer shell in group one
One electron
Group 7 contains the most reactive what
The most reactive non-metals
What are the group 7 elements know as
Halogens
How many electrons are there in the outer shell in group 7
There are 7 electrons in the outer shell
And we go down group 7 the non-metal get what
Less reactive
What is group 8 know as
The noble
What are all the group 8 elements
Unreactive non-metals
Why do they not react
They have a full outer shell of electrons
What is the block between groups 2 and 3 called
Transition metals- they form coloured compounds and are generally unreactive metals
Name two semi metals
Silicon and germanium
What are semi metals
Show properties of metals and non-metals
Conduct small amounts of electricity
What is a carbon ???
Graphite
Non-metal, which conducts electricity
What are groups 1 and 2
They are metals
What are group 6 and 7
They are non-metals
