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प्रश्न
The size of an atom is indicated by its _______.
पर्याय
atomic number
radius
number of shells
atomic mass
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उत्तर
The size of an atom is indicated by its radius.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Answer the following in respect of element `31/15 P `
Is it a reducing agent or oxidizing agent?
Why is the size of neon greater than fluorine?
Which is greater in size an atom or a cation?
Which is greater in size an atom or an anion?
Which is greater in size Fe2+ or Fe3+?
Give reason for the following:
Argon atom is bigger than chlorine atom.
Write the name and symbol of the element from the description.
The atom having the smallest size.
Write scientific reason.
Atomic radius goes on increasing down a group.
Among the elements of the second period, Li to Ne, pick out the element with the largest atomic size
Arrange the following as per the instruction given in the bracket.
Mg, Cl, Na, S, Si (increasing order of atomic size)
Write an Explanation.
Atomic radius
The electronic configuration of metal A is 2, 8, 18, 1.
The metal A when exposed to air and moisture forms B a green layered compound. A with con. H2 SO4 forms C and D along with water. D is a gaseous compound. Find A, B, C, and D.
An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
Which one of the following depict the correct representation of atomic radius(r) of an atom?
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(i) |
(ii) |
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(iii) |
(iv) |
Write the formula of the product formed when the element A (atomic number 19) combines with the element B (atomic number 17). Draw its electronic dot structure. What is the nature of the bond formed?
- 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 as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
Which one of the following has the largest atomic radius?
