The periodic table is very useful to chemists - Edexcel - GCSE Chemistry - Question 1 - 2013 - Paper 1
Question 1
The periodic table is very useful to chemists.
(a) Complete the sentence by putting a cross (X) in the box next to your answer.
The periodic table is a table of
A... show full transcript
Worked Solution & Example Answer:The periodic table is very useful to chemists - Edexcel - GCSE Chemistry - Question 1 - 2013 - Paper 1
Step 1
Complete the sentence by putting a cross (X) in the box next to your answer.
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Answer
The correct answer is B: elements. The periodic table is primarily a table of elements, which are the basic building blocks of all matter.
Step 2
Fill in the three spaces in the table.
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Answer
gas
atomic symbol
density / g dm−3
reaction with metals
helium
He
0.12
no reaction
neon
Ne
1.44
no reaction
argon
Ar
1.78
no reaction
krypton
Kr
3.00
no reaction
xenon
Xe
3.56
no reaction
Step 3
Some light bulbs contain a metal filament.
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Answer
The metal filament commonly used in light bulbs is copper. It is known for conducting electricity well and producing heat and light when electric current passes through it.
