ionic bonding

Why do atoms react

They want a more stable arrangement of electrons - a full outer shell

Is a ionic bond a compound or a mixture?

Compound

What is the difference between an atom and an ion?

An atom is neutral and has a balanced number of protons and neutrons. An ion is charged and formed from atoms that have lost/ gained electrons

If an atom loses 3 electrons what is its charge?

+3

If an atom gains 2 electrons what is its charge?

-2

How can we tell how many electrons is in an atoms outer shell

By looking at its group

What does the formula show in ionic compounds?

The ratio

Is an ionic compound charged or neutral

Neutral

How do we write the formula of an ionic compound

Find charges of ions, flip around

What is the structure of an ionic compound?

Giant regular lattice

What directions does SEFABOCI act in the lattice

All

What is the formula of a sulphate ion

What is the formula of a carbonate ion

What is the formula of a nitrate ion

What is the formula of a hydroxide ion

What is the formula of a Phosphate ion

What is the formula of an ammonium ion