Question

1) Classify the following metals, non metals and metalloids
• copper
•silicon
•carbon
• chlorine
•gold
• boron

2) Name the following
a) Liquid metal
b) Liquid non metal
c) non metal which is lustrous
d) non metal which is good conductor of electricity

3) 23g of salt is dissolved in 100g water.Find it's concentration

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Answer 1

Answer:

1) Metals - Copper, Gold

Metalloid - Silicon

Non Metals - Carbon, Boron

2) Mercury

Bromine

Iodine

Graphite

3) 23%