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प्रश्न
State the property trends in general of elements on moving from left to right in a period of the periodic table.
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उत्तर
Property trends of elements from left to right in a period:
- Number of electron shells remains the same.
- Valence electrons increase by one.
The transition from metallic to non-metallic character increases. - Size of atom decreases.
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संबंधित प्रश्न
An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is ______.
How does the electropositive character of elements change on going down in a group of the periodic table?
Why are noble gases placed in a separate group?
State the number of elements in periods 1, Periods 2, and Period 3 of the periodic table. Name them.
How could the atomic radius of a noble gas be compared with the other elements in a period?
Use the letters only written in the Periodic Table given below to answer the questions that follow:
(a) State the number of valence electrons in the atom J.(b) Which element shown forms ions with a single negative charge?
(c) Which Metallic element is more reactive than R?
(d) Which element has its electrons arranged in four shells?
Arrange the following as per instruction given in the bracket.
Cs, Na, Li, K, Rb (decreasing electronegativity)
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Arrange the following in order of increasing radii:
N, O, P
The electronic configuration of an element is 2, 8, 4. State it:
group and period in the Modern Periodic Table.
