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प्रश्न
What is meant in the periodic table by a period?
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उत्तर
In a periodic table, elements are arranged in the order of increasing atomic numbers in horizontal rows called periods.
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संबंधित प्रश्न
Give two example of group 18 elements.
On which side of the periodic table will you find non-metals?
Which element has two shells, both of which are completely filled with electrons?
In what respects do the properties of group 1 elements differ from those of group 17 elements? Explain with examples by taking one element from each group.
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
Give the symbol and valency of the following element and radical.
Carbonate
The scientist who propounded the modern periodic law is ______.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
Arrange the following elements in the increasing order of their metallic character
| Mg, | Ca, | K, | Ge, | Ga |
Noble gases are placed in the ______ group in the modern periodic table.
