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प्रश्न
How does the property vary in periods and in groups?
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उत्तर
Along the period, from left to right in the periodic table the electronegativity increases because of the increase in the nuclear charge which in turn attracts the electrons more strongly. On moving down a group, the electronegativity of the elements decreases because of the increased number of energy levels.
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संबंधित प्रश्न
Explain why, the noble gases are placed in a separate group.
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same group of the periodic table?
Name the type of elements which have outermost shell incomplete.
State the modern periodic law.
Compare Modern Periodic Law with Mendeleev's Periodic Law.
Distinguish between:
Group 17 - Group 18
Which of the following elements would lose an electron easily?
Which of the following elements will form an acidic oxide?
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
______ group elements are called alkaline earth metals.
