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Elements can be classified as metals or non-metals - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1
Question 1
Elements can be classified as metals or non-metals. Explain, using its position in the periodic table, whether indium is a metal or a non-metal.
Worked Solution & Example Answer:Elements can be classified as metals or non-metals - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1
Step 1
Explain, using its position in the periodic table, whether indium is a metal or a non-metal.
Answer
Indium (In) is classified as a metal.
This classification is based on its position in Group 3 of the periodic table. Generally, elements classified as metals are found to the left and below the dividing line that separates metals from non-metals. In the case of indium, it is surrounded by other metallic elements like gallium (Ga) and thallium (Tl) on the periodic table, indicating that it exhibits metallic properties. Furthermore, indium displays characteristics typical of metals, such as good conductivity and malleability.