In Figure 1, the letters A, E, G, J, X and Z show the positions of six elements in the periodic table - Edexcel - GCSE Chemistry Combined Science - Question 1 - 2019 - Paper 1
Question 1
In Figure 1, the letters A, E, G, J, X and Z show the positions of six elements in the periodic table. These letters are not the symbols of the atoms of these elemen... show full transcript
Worked Solution & Example Answer:In Figure 1, the letters A, E, G, J, X and Z show the positions of six elements in the periodic table - Edexcel - GCSE Chemistry Combined Science - Question 1 - 2019 - Paper 1
Step 1
Using the letters A, E, J, X and Z (i) give the letters of the two elements that are non-metals
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Answer
The two elements that are non-metals in the periodic table represented by the letters A, E, J, X, and Z are E and J.
Step 2
Using the letters A, E, J, X and Z (ii) give the letters of two elements in period 2
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Answer
The two elements in period 2 are A and E.
Step 3
Using the letters A, E, J, X and Z (iii) give the letter of an element that normally forms an ion with a charge of +1
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Answer
The element that normally forms an ion with a charge of +1 is J.
Step 4
Explain, in terms of subatomic particles, what is meant by the term isotopes
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Answer
Isotopes are atoms of the same element that have the same number of protons but a different number of neutrons. This means they have the same atomic number but different mass numbers.
