|
Periodic Trends |
|
|
|
|
Property |
Period (Left to Right) |
Family (Top to Bottom) |
|
|
|
|
Metallic properties |
Decrease |
Increase |
|
|
|
|
Atomic # |
I |
I |
|
|
|
|
Atomic radius |
D (except noble gases) |
I |
|
|
|
|
Positive oxidation # |
I (to carbon family) |
satys the same |
|
|
|
|
negative oxidation # |
D (from carbon family) |
stays the same |
|
|
|
|
ionic radius (for + & -) |
D (+, to C) I (-, from C) |
I |
|
|
|
|
electronegativity |
I (Except noble gases) |
D |
|
|
|
|
first ionization energy |
I |
D |
|
|
|
|
ability to act as a reducing agent |
D |
I |
|
|
|
|
ability to act as an oxidizing agent |
I |
D |
|
|
|
|
ability to form acids |
I |
I |
|
|
|
|
ability to form bases |
D |
I |
|
|
|
|
activity of metals (*) |
D |
I |
|
|
|
|
activity of non-metals (*)(except noble gases) |
I |
D |
|
|
|
|
atomic weight |
I |
I |
|
|
|
|
|
|
|
|
|
|
|
* moving away from the staircase |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|