In Figure 1, the letters A, E, G, J and Z show the positions of six elements in the periodic table - Edexcel - GCSE Chemistry - Question 2 - 2019 - Paper 1
Question 2
In Figure 1, the letters A, E, G, J and Z show the positions of six elements in the periodic table. These letters are not the symbols of the atoms of these elements.... show full transcript
Worked Solution & Example Answer:In Figure 1, the letters A, E, G, J and Z show the positions of six elements in the periodic table - Edexcel - GCSE Chemistry - Question 2 - 2019 - Paper 1
Step 1
Using the letters A, E, G, J 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 are E and G.
Step 2
Using the letters A, E, G, J 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, G, J 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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Isotopes are variants of the same element that have the same number of protons but different numbers of neutrons. This means they have the same atomic number but different mass numbers. For example, the isotopes of element E have atomic numbers 5 (the same number of protons) but different mass numbers, indicating different neutron counts.
