Periodic Table Flashcards
How are elements arranged
they are arranged in their atomic number.
Columns are the….
Rows are….
How many blocks are there….
groups
periods
4 but in the exam we are shown 3
Group 1
Group 7
Group 0
alkali
Halogens
Noble Gases
Nobel gases are….
Stable
Halogens and Alkalis react….
aggressively
In each new period we will see….
new outer shells, while electrons are added moving to the right.
Group 1
Group 2
Group 3
Group 4, 5, 6, 7, 0
1 electron on outer shell
2 electrons on the outer shell
3 electrons
4, 5, 6, 7, 0 on the outer shell
What do blocks help us identify
the subshell the outer most electrons are on
s- blocks
p- blocks
d- block
1 and 2 group
3- 0 group
between group 2 and 3 which contain transition metals
What are the properties of an element?
atomic radius
ionisation energy
electronegativity
What is the atomic radius dependant on?
number of protons in the nucleus
Number of shells
As you go across a period what will change with each element?
the number of protons because the number will increase as you go along, and the electrons will be the same amount as the protons.
What is ionisation energy
It is the energy that allows elements to remove electrons when needed to.
What happens to the nuclear charge as you go across a period?
The nuclear energy increases.
As you down a group what happens?
the shells increase
Electronegativity
The ability of a bonded atom to attract a pair of electrons in a covalent bond
S- block is……
metals
D- blocks is…..
transition metals
Group 7
halogens
Group 0 or 8
Nobel Gases
What do transition metals tend to form?
coloured compounds and solutions
As you go down what happens to the physical properties of g7 non-metals
The physical properties change because of their melting and boiling points
How many electrons do g0 or q8 have on the outer shell?
g0= 0 electrons g8= 8 electrons
What happens to g0 elements at room temperature?
They are all gases
