1. What is meant by the term atom?

Question 1 of 12

2. Calculate the relative formula mass(Mr) of a molecule of bromine (Br₂)

Question 2 of 12

3. If an element doesn't conduct electricity, is it a metal or a non-metal?

Question 3 of 12

4. Describe the arrangement, movement and energy of the particles in a gas

Question 4 of 12

5. How many protons in a silicon atom?

Question 5 of 12

6. Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)

Question 6 of 12

7. What happens when something freezes?

Question 7 of 12

8. How many different elements are there in Be(OH)₂ ?

Question 8 of 12

9. What is meant by the term endothermic?

Question 9 of 12

10. Where are non-metals found on the periodic table?

Question 10 of 12

11. State the particles that are found within the nucleus of an atom

Question 11 of 12

12. How are elements arranged in the periodic table?

Question 12 of 12


 

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