Which equation represents the first ionisation energy of calcium?
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12 questions
The second ionisation energy of magnesium refers to
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Shielding is caused by
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First ionisation energy decreases down group 2 mainly because
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The first IE of aluminium is lower than that of magnesium because
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Across period 3, first IE generally increases because
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Successive IEs of an element: 578, 1817, 2745, 11577 kJ/mol. The element is in group
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Sodium's successive IEs show the first big jump between which two IEs? Enter the number of the IE after the jump.
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Successive ionisation energies always increase because
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Which element has the highest first ionisation energy?
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The first IE of oxygen is lower than that of nitrogen because
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An element's first five IEs (kJ/mol) are 1086, 2353, 4620, 6223, 37831. Which could it be?
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