Complete the following sentences - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2019 - Paper 1
Question 2
Complete the following sentences.
(i) The name given to group 7 in the periodic table is ________________.
(ii) The name given to group 0 in the periodic table is ... show full transcript
Worked Solution & Example Answer:Complete the following sentences - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2019 - Paper 1
Step 1
Complete the following sentences.
(i) The name given to group 7 in the periodic table is ________________.
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Answer
The name given to group 7 in the periodic table is halogens.
Step 2
(ii) The name given to group 0 in the periodic table is ________________.
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Answer
The name given to group 0 in the periodic table is noble gases.
Step 3
Which of the following rows gives the colours of the group 7 elements chlorine and bromine at room temperature?
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Answer
The correct row is A: chlorine is red-brown, and bromine is purple.
Step 4
Using the information in Figure 2, which row shows the physical states of these elements at 50°C?
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Answer
At 50°C, bromine is a liquid and iodine is a solid. Therefore, the correct row is B: liquid, gas.
