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junior college 1 | H2 Maths
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Date Posted: 3 days ago
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(i) Spike in IE implies change in valence shell. Hence first three electrons belong to the same valence shell as the spike in IE occurs on the fourth electron; element Z belongs to Group XIII
(iii) Element D with the highest 3rd IE implies it belongs to Group II i.e. element E and element Z refers to the same element. Additionally, element A belongs to Group XVII i.e. element A must be flourine since if it was chlorine, element Z would have an atomic number > 20. Hence element Z is Aluminium.
(iii) Element D with the highest 3rd IE implies it belongs to Group II i.e. element E and element Z refers to the same element. Additionally, element A belongs to Group XVII i.e. element A must be flourine since if it was chlorine, element Z would have an atomic number > 20. Hence element Z is Aluminium.
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I hope this solution helps you! I recommend having periodic table as reference when doing this question, will be easier to visualise.
Date Posted:
2 days ago
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