3 The positions of five elements, A, B, C, D and E, are shown in the periodic table - Edexcel - GCSE Chemistry - Question 3 - 2012 - Paper 1
Question 3
3 The positions of five elements, A, B, C, D and E, are shown in the periodic table. These letters are not the atomic symbols of these elements.
(a) Use only elemen... show full transcript
Worked Solution & Example Answer:3 The positions of five elements, A, B, C, D and E, are shown in the periodic table - Edexcel - GCSE Chemistry - Question 3 - 2012 - Paper 1
Step 1
Give the letters of all the elements that are metallic.
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Answer
The metallic elements in the periodic table for the given positions are A, B, and C. Therefore, the letters representing the metallic elements are A, B, and C.
Step 2
Give the letters of the two elements that have the most similar chemical properties.
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Answer
The two elements that have the most similar chemical properties are A and B, as they belong to the same group in the periodic table.
Step 3
State how many more protons there are in an atom of element B than in an atom of element A.
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Answer
Element B has 8 protons, and element A has 2 protons. Therefore, element B contains 8 - 2 = 6 more protons than element A.
