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प्रश्न
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
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उत्तर
Na > Mg > Si > S > Cl
∴ Atomic size reduces when moving from left to right in the third phase.
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संबंधित प्रश्न
Fill in the blank:
On moving across a period from right to left in the periodic table, the atomic size of the atom ___________.
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
Select the correct answer
Atomic radii of fluorine and neon in angstrom unit are
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Atomic size increases from left to right across a period.
The following questions refer to the Periodic Table.
What happens to the atomic size of elements moving from top to bottom of a group?
Fill in the blank by selecting the correct word from the bracket.
If an element has seven electrons in its outermost shell then it is likely to have the _____ atomic size among all the elements in the same period.
Which among the following elements has the largest atomic radii?
- Electropositive nature of the element(s) increases down the group and decreases across the period
- Electronegativity of the element decreases down the group and increases across the period
- Atomic size increases down the group and decreases across a period (left to right)
- Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.
- Name the most electropositive element among them
- Name the most electronegative element
- Name the element with smallest atomic size
- Name the element which is a metalloid
- Name the element which shows maximum valency.
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Explain your choice.
Arrange the following in order of increasing radii:
N, O, P
Explain your choice.
