captions having high charged and small size are termed
Answers
Answer:
idk.. sorry... idk.. sorry
Answer:
Sizes of ions influence:
packing of ions in ionic lattices, and therefore, the lattice energy
biological recognition - some ions can pass through certain membrane channels, others may be too large
The size of an ion is influenced by:
nuclear charge
number of electrons
valence orbitals
Cations
formed by removing one or more valence electrons
vacates the most spatially extended orbitals
decreases the total electron-electron repulsion in the outer orbital
Cations are therefore smaller than the parent atom
Anions
formed by addition of one or more valence electrons
fills in the most spacially extended orbitals
increases electron-electron repulsion in outer orbital
Anions are therefore larger than the parent atom
For ions of the same charge (e.g. in the same group) the size increases as we go down a group in the periodic table
As the principle quantum increases the size of both the parent atom and the ion will increase