Properties of Period 3 Elements & their Oxides (A Level only) (AQA A-Level Chemistry): Quizzes

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Na & Mg with water
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Which groups do NaNa and MgMg belong to in the periodic table?

NaNa Group 1, MgMg Group 2

How many electrons must MgMg lose to achieve a stable electron configuration?

Two electrons

Why is NaNa more reactive than MgMg with water?

NaNa needs less energy to lose 1 electron

What is observed when NaNa reacts with cold water?

Molten ball skims surface, vigorous fizzing

What are the products when NaNa reacts with water?

NaOHNaOH and H2H_2

What type of solution does NaOHNaOH form in water?

Strongly alkaline with high pH

How does MgMg react with cold water?

Very slowly

What are the properties of Mg(OH)2Mg(OH)_2 in water?

Sparingly soluble, weakly alkaline

What is observed when MgMg reacts with steam?

Vigorous reaction, bright white flame

What are the products when MgMg reacts with steam?

MgOMgO and H2H_2

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