Ionic Compounds

Question 1

Naming Rules for ionic compounds

Answer 1

metal, non-metal
the non-metal ends with -ide

Aluminum and Flourine—> Aluminum Flouride

If the metal is multi-valent, put the charge of it using roman numerals behind it:

Fe3N2 —> Iron (II) Nitride

Question 2

Why do ionic compounds form?

Answer 2

Because element atoms want a full-valence shell. Metals will lose valence electrons to non-metals in order to fill both of their valence shells, causing each atom to become oppositley charged (metals become positive, non-metals become negitive). The opposite charges cause them to attract and bond to each other

Question 3

!NOT A QUESTION, JUST A REMINDER THAT IONIC COMPOUNDS WILL ALWAYS BE NEUTRAL, THAT IS WHY IT IS IMPORTANT TO ADD SUBSCRIPTS;
MG(+2) AND N (-3) —-> MG3N2
you need enough of each atom to balance each other

Question 4

What are the traits of ionic compounds

Answer 4

hard, brittle solids
generally white in colour
can dissolve in water
conductive of electricity

Question 5

What elements create ionic compounds

Answer 5

metals and non-metals

Question 6

Polyatomic ions

Answer 6

ions that are made from atoms of several non-metals that work as one unit.

They are bonded covalently to eachother, but bond ionically to metals

All are negitivley charged, with the expection of ammonium

example: Ammonium: NH4, Hydroxide: OH-,
Phospate: SO4, Nitrate: NO3

Question 7

Ions

Answer 7

Charged atoms (have an inbalance of electrons and protons, more electrons=negitive charge,
more protons = positive charge)

Question 8

Isotopes

Answer 8

Atoms with an imbalance of neutrons