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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?
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
The atomic particle whose number in the atoms of an element always remains the same and which forms the real basis for the modern classification of elements is:
(a) electron
(b) proton
(c) neutron
(d) meson
What are the merits of the modern periodic table of elements?
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
What is the number of elements in the 3rd period, of the modern periodic table?
Give the symbol and valency of the following element and radical.
Zinc
Write an Explanation.
Period
Write scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
State any five features of modern periodic table.
On moving from left to right in a period in the periodic table, the size of the atom ______
The longest period of the Modern Periodic Table is period.
