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प्रश्न
Name two elements that you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
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उत्तर
Two elements, magnesium (Mg) and barium (Ba), undergo chemical reactions that are comparable to those of calcium because all three elements have two electrons in their outermost shell and are members of group II-A.
संबंधित प्रश्न
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
What are horizontal rows and vertical columns in a periodic table known as?
Name two elements in halogens.
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
What will be the formula of its phosphate?
Give the symbol and valency of the following element and radical.
Ammonium
Give the symbol and valency of the following element and radical.
Hydroxide
The d-block elements are called as _______ elements.
How does the property vary in periods and in groups?
Which of the given elements A, B, C, D and E with atomic number 2, 3, 7, 10 and 30 respectively belong to the same period?
Spot the error:
There are 5 periods and 17 groups in the modern periodic table.
