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4 - Periodic Table

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✅EvaluateQuestion 1 of 21

What determines the position of an element in the Periodic Table?

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✅EvaluateQuestion 2 of 21

Which of the following elements is found in Group II?

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✅EvaluateQuestion 3 of 21

Which of the following statements about elements in the same group is TRUE?

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✅EvaluateQuestion 4 of 21

What is the physical state of bromine at room temperature (25°C)?

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✅EvaluateQuestion 5 of 21

What is the trend in atomic radius across Period 3?

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✅EvaluateQuestion 6 of 21

Which of the following halogens is the most reactive?

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✅EvaluateQuestion 7 of 21

What type of oxide does sodium form?

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✅EvaluateQuestion 8 of 21

Which pair of elements are found in the same period?

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✅EvaluateQuestion 9 of 21

Why does reactivity increase down Group II?

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✅EvaluateQuestion 10 of 21

Which Group VII element is commonly used for disinfecting drinking water in the Caribbean?

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✅EvaluateQuestion 11 of 21

Which of the following elements shows amphoteric behaviour in its oxide?

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✅EvaluateQuestion 12 of 21

The gradual change from metallic to non-metallic character across a period is due to:

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✅EvaluateQuestion 13 of 21

What is the trend in the solubility of Group II hydroxides?

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✅EvaluateQuestion 14 of 21

Which of the following changes occurs in Group VII down the group?

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✅EvaluateQuestion 15 of 21

Which pair of oxides correctly shows the change from basic to acidic nature across Period 3?

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✅EvaluateQuestion 16 of 21

Which element would you predict to form a compound with the formula XCl₂?

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✅EvaluateQuestion 17 of 21

Why does the melting point of Group II metals generally decrease down the group?

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✅EvaluateQuestion 18 of 21

Which element in Period 3 forms a covalent oxide that dissolves in water to give an acidic solution?

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✅EvaluateQuestion 19 of 21

When chlorine gas is passed through sodium iodide solution, which observation is correct?

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✅EvaluateQuestion 20 of 21

Which pair correctly matches the element and its position?

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✅EvaluateQuestion 21 of 21

Which trend best explains the decreasing reactivity of halogens down the group?

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✅EvaluateQuestion 1 of 21

What determines the position of an element in the Periodic Table?

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