Formation Of Ions Flashcards
1
Q
What is the first ionisation energy?
A
The energy needed to remove 1 ELECTRON from each atom in 1 MOLE of gaseous atoms to form 1 mole of gaseous 1+ ions.
2
Q
What happens for an atom to be “ionised?”
A
Electron(s) have been removed
3
Q
What 3 things affect ionisation energy?
A
Nuclear charge
Distance from nucleus
Shielding
4
Q
What are the general trends of ionisation energy in the periodic table?
A
Ionisation energy decreases down a group and increases across a period.
5
Q
The lower the ionisation energy the….. it is to remove the outer electron.
A
The EASIER
6
Q
What is does an oxide ion look like?
A
O2 -
7
Q
What does the hydroxide ion look like?
A
OH-
8
Q
What does a nitrate ion look like?
A
NO3 -
