the periodic table Flashcards
- development of the periodic table - electronic structure and the periodic table - group 1 trends - group 7 trends - transition elements
1
Q
How are the elements in the periodic table ordered?
A
arranged in order of increasing atomic number.
2
Q
What is electronic structure?
A
is the way in which electrons are arranged in an atom.
3
Q
how to work out the number of shells of an element on the periodic table?
A
the period number
4
Q
how to work out how many electrons there will be in the outermost shell?
A
group number
5
Q
What are group 1 trends?
A
reactivity of group 1 elements increases as you go down the group
6
Q
What are group 7 trends?
A
further down the group an element is, the higher its melting point and boiling point
7
Q
why in group 7 does this happen?
A
- molecules get bigger
- intermolecular forces become stronger
8
Q
What are transition elements?
A
elements in the centre of the periodic table
9
Q
A
