Key periodic table info. Flashcards
1
Q
Trend in atomic radius across a period.
A
Decreases across a period
Because the same number of electron shells
But more protons pulling the electrons in.
2
Q
Trend in atomic radius down a group.
A
Increases down a group
As there are more electron shells.
3
Q
Finding electron configuration.
A
Shell=period
Sub-shell=block
Number of electrons in sub-shell=number of columns across in block.
4
Q
Where are the metals.
A
To the left of the boron step.
5
Q
Where are the non-metals.
A
To the right of the boron step.
6
Q
Metal+metal.
A
Metallic bonding.
7
Q
Non-metal+metal.
A
Ionic bonding.
8
Q
Non-metal+non-metal.
A
Covalent bonding.
9
Q
Electronegativity trend across the period.
A
Increases across the period.
10
Q
Electronegativity trend down the group.
A
Decreases down the group.
11
Q
A
