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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
Write the merits of the modern periodic table over Mendeleev’s Periodic table
State modern periodic law.
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
State the term
The tabular arrangement of elements in horizontal rows and vertical columns _________
Correct the statement.
Copper and zinc are representative elements.
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
How many periods and groups are there in the modern periodic table?
Give the symbol and valency of the following element and radical.
Potassium
Give the chemical formula of calcium phosphate
Compare the radii of two species X and Y. Give reasons for your answer.
- X has 12 protons and 12 electrons
- Y has 12 protons and 10 electrons
