Periodic Trends Flashcards
What group usually acts as reducing agents?
Alkali earth metals and alkaline earth metals (Group I and Group 2)
What group are halogens?
Group 7
What group are powerful oxidizing agents?
Halogens ( group 7)
What direction does atomic radius decrease?
Left to right and going up the group. For ions radius is smaller for cations
In which direction does ionization energy increase?
Left to right or going up a group
What is ionization energy?
Energy needed to remove an electron
Which ionization energy would be greater first or second?
Second
Which direction does electron affinity increase?
Left to right or going up a group. It becomes more negative with exception of noble gases
What is electron affinity?
Energy associated with addition of electrons
When is electron affinity negative?
If energy is released when an electron is added
When is electron affinity positive
When energy is required to add an electron
Which direction does acidity increase?
Left to right or going down a group
