Determine the Number of Protons

Q1: How many protons are present in aluminium?

Correct!
Incorrect - Find aluminium on the periodic table - the number of protons is the smaller of the two numbers.
Incorrect - Find aluminium on the periodic table - the number of protons is the smaller of the two numbers.


Determine the number of electrons

Q2: How many electrons are there in aluminium?

Correct - well done!
Incorrect - the number of electrons is the same as the number of protons in an atom.
Incorrect - the number of electrons is the same as the number of protons in an atom.


Determine the number of neutrons

Q3: How many neutrons are there in lithium?

Correct - well done!
Incorrect - to get the number of neutrons find lithium on the periodic table and work out the difference between the atomic mass and the atomic number
Incorrect - to get the number of neutrons find lithium on the periodic table and work out the difference between the atomic mass and the atomic number


Define the word isotope

Q4: Isotopes have the

Afraid not - double check the information page.
Afraid not - double check the information page.
Correct - remember that the number of electrons is the same as well - if it's a three mark question describe the number of electrons too.


Describing isotopes

Q5: Describe the similarities and differences between C-13 and C-12

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