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प्रश्न
Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
उत्तर
Calcium (Ca) and strontium (Sr) are expected to show chemical reactions similar to magnesium (Mg). This is because the number of valence electrons (2) is same in all these three elements and since chemical properties are due to valence electrons, they show same chemical reactions.
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संबंधित प्रश्न
Which of the following statement about the modern periodic table is correct?
(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.
What are horizontal rows and vertical columns in a periodic table known as?
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
Give the symbol and valency of the following element and radical.
Potassium
Give the symbol and valency of the following element and radical.
Bicarbonate
Mendeleev's periodic table : atomic mass : : Modern periodic table : _______
Which one of the following elements exhibit maximum number of valence electrons?
______ group elements are called alkaline earth metals.
An element belonging to 3d series of modern periodic table has spin magnetic moment = 5.92 B.M. in +3 oxidation state. The atomic number of elements are ______.
Match the atomic number with the following:
An element of group 2.
