The Most Reactive Metal Is A Sodium B Magnesium C Potassium ...

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AnswerQuestion Answers for Class 12Class 12 BiologyClass 12 ChemistryClass 12 EnglishClass 12 MathsClass 12 PhysicsClass 12 Social ScienceClass 12 Business StudiesClass 12 EconomicsQuestion Answers for Class 11Class 11 EconomicsClass 11 Computer ScienceClass 11 BiologyClass 11 ChemistryClass 11 EnglishClass 11 MathsClass 11 PhysicsClass 11 Social ScienceClass 11 AccountancyClass 11 Business StudiesQuestion Answers for Class 10Class 10 ScienceClass 10 EnglishClass 10 MathsClass 10 Social ScienceClass 10 General KnowledgeQuestion Answers for Class 9Class 9 General KnowledgeClass 9 ScienceClass 9 EnglishClass 9 MathsClass 9 Social ScienceQuestion Answers for Class 8Class 8 ScienceClass 8 EnglishClass 8 MathsClass 8 Social ScienceQuestion Answers for Class 7Class 7 ScienceClass 7 EnglishClass 7 MathsClass 7 Social ScienceQuestion Answers for Class 6Class 6 ScienceClass 6 EnglishClass 6 MathsClass 6 Social ScienceQuestion Answers for Class 5Class 5 ScienceClass 5 EnglishClass 5 MathsClass 5 Social ScienceQuestion Answers for Class 4Class 4 ScienceClass 4 EnglishClass 4 MathsThe most reactive metal is?(A) Sodium(B) Magnesium(C) Potassium(D) CalciumAnswerVerified586.5k+ viewsHint: We can say that in metals, as we go from right to left in the periodic table, reactivity increases. As we go from up to down in the periodic table, reactivity of metals increases.Complete step by step answer: Let us understand the reactivity of metals in the periodic table.- As we know the chemical reactivity decreases as you go left to right of the periodic table and it increases as you go down the group in the case of metals.- This happens because as you go down the group, it is easier for electrons to be taken away, which results in high chemical reactivity and as you go from left to right the elements in the periodic table have more electrons in their valence shells, so they are not as reactive in compared to the metals which have less valency.- As we have already discussed, reactivity of alkali metals tends to increase as you go down the group. Therefore, sodium is less reactive with water than is potassium, likewise with the alkaline metals; calcium is more reactive than magnesium. Also, as the extreme left elements have higher radius and lowest ionization energy, which results in high reactivity. - Therefore, out of the above elements, potassium is present at the extreme left of periodic and also at the lowest position down the group amongst the given elements in the options. - Potassium metal has more number of shells compared to sodium and thus it becomes easy to remove one electron from its outermost orbital ( less ionization enthalpy).- So, out of given metals, Potassium is the most reactive metal. Therefore, potassium is the most reactive metal among the given options. Hence, option C is the required answer. Note: Remember that in case of metals, reactivity depends upon the ease of removal of the valence electrons. We can say that a more reactive metal will displace a less reactive metal from its solution.Recently Updated PagesMaster Class 10 Computer Science: Engaging Questions & Answers for SuccessMaster Class 10 General Knowledge: Engaging Questions & Answers for SuccessMaster Class 10 English: Engaging Questions & Answers for SuccessMaster Class 10 Social Science: Engaging Questions & Answers for SuccessMaster Class 10 Maths: Engaging Questions & Answers for SuccessMaster Class 10 Science: Engaging Questions & Answers for SuccessMaster Class 10 Computer Science: Engaging Questions & Answers for SuccessMaster Class 10 General Knowledge: Engaging Questions & Answers for SuccessMaster Class 10 English: Engaging Questions & Answers for SuccessMaster Class 10 Social Science: Engaging Questions & Answers for SuccessMaster Class 10 Maths: Engaging Questions & Answers for SuccessMaster Class 10 Science: Engaging Questions & Answers for Success

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