The element phosphorus, P, is immediately below nitrogen in the Periodic Table. It forms an oxide with the empirical formula P2O5. From the position of phosphorus in the Periodic Table, the element is expected to be 1 and the bonds in its oxide to be 2 . Which words correctly complete gaps 1 and 2?

5070_s23_qp_12

MCQ

2023

Paper 1, Variant 2

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The diagram shows the arrangement of electrons in a molecule of compound YZ2. Z Z Y outer electron of a Y atom outer electron of a Z atom key What are elements Y and Z?

5070_w05_qp_1

MCQ

2005

Paper 1, Variant 0

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The positions of four elements are shown...

5070_w06_qp_1

MCQ

2006

Paper 1, Variant 0

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Three elements X, Y and Z have consecutive, increasing proton numbers. If element X is a noble gas, what will be the symbol for the ions of element Z in its compounds?

5070_w06_qp_1

MCQ

2006

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The table gives the arrangements of electrons in the atoms of four different elements. Which element does not form an ionic compound with chlorine?

5070_w12_qp_11

MCQ

2012

Paper 1, Variant 1

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An ionic compound has the formula X3Y2. To which groups of the Periodic Table do X and Y belong?

5070_w12_qp_12

MCQ

2012

Paper 1, Variant 2

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W, X and Y are elements in the same period of the Periodic Table. ● X forms compounds of formulae XCl 2 and XCl 3. ● Y forms a solution of pH12 when it reacts with water. ● The reaction of W with water is similar to the reaction of Y with water but is less vigorous. In which order are the elements in the Periodic Table?

5070_w13_qp_11

MCQ

2013

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The diagram shows an outline of part of the Periodic Table. W X Y Z Which statement is not correct?

5070_w14_qp_11

MCQ

2014

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The compound formed between elements X and Y is ionic. Which statement about elements X and Y is correct?

5070_w14_qp_12

MCQ

2014

Paper 1, Variant 2

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The positions of four elements are shown...

5070_w14_qp_12

MCQ

2014

Paper 1, Variant 2

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