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What happens to the electrons in ionic bonding?
They are transferred from the metal to the non-metal
Metal and non-metal
What type(s) of element will be present when an ionic bond forms?
Anode (Electrolytic Cell)
at the beginning of a redox reaction, the charge of the anode is
How do you work out the charge on an ion?
Subtract the number of electrons in an ion from the number of protons.
What is an ionic bond?
Electrostatic attraction between oppositely charged ions
What is the formula and charge of a hydroxide ion?
What is the formula and charge of a nitrate ion?
What is the formula and charge of a carbonate ion?
What is the formula and charge of a sulfate ion?
What charge of ion do all group I elements form?
What charge of ion do all group II elements form?
What charge of ion do all group VI elements form?
What charge of ion do all group VII elements form?
How do you decide how many electrons an atom will lose or gain?
See how many electrons need to be lost or gained. Choose the smaller of the two numbers. e.g. gain 2 or lose 6, means the atom will gain 2.
Liquid, or in solution
Ionic compounds only conduct electricity when...
Why is melting point high?
Strong forces of attraction between oppositely charged ions
Ions cannot move, so charge cannot flow
Why do ionic compounds NOT conduct when solid?
Ions CAN move, so charge can flow
Why DO ionic compounds conduct in liquid and solution?
Take two solution, mix, filter, dry
What is the method of obtaining an insoluble salt?
A compound of group I
What compound would you use to provide the negative ion needed when making an insoluble salt?
A compound with nitrate
What compound would you use to provide the positive ion needed when making an insoluble salt?
Flame colour of Lithium
Flame colour of Sodium
Long lasting intense yellow
Flame colour of Potassium
Flame colour of Calcium
Flame colour of Barium
Test for chloride
Add silver nitrate, observe white precipitate
Test for bromide
Add silver nitrate, observe cream precipitate
Test for iodide
Add silver nitrate, observe yellow precipitate
Test for carbonate
Add hydrochloric acid, observe bubbles
Test for sulfate
Add barium chloride, observe white precipitate
Flame test is used to identify the
What is an ion?
a charged particle formed by the loss or gain of electrons
(+) Lose an electron
(-) Gain an electron