Senin, 18 Oktober 2010

Atom n Element (Exercise) For Grade 8

Atoms and elements - Test Bite

1. Which of these is the smallest particle? 
an atom
a molecule
a speck of dust

2. Which of these is the correct symbol for magnesium? 
MG
mg
Mg

3. Which statement about elements is correct? 
most elements are metals
most elements are non-metals
there are about the same number of metals and non-metals

4. Where are the metals found in the periodic table? 
on the left
on the right
scattered all over

5. Which of the following is not a general property of metals? 
shiny
good conductor of heat
poor conductor of electricity

6. Which of the following is not a general property of non-metals? 
brittle
strong
poor conductor of heat

7. An element sinks in water and makes ringing sound when hit. It is most likely to be: 
a metal
a non-metal
an alloy

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