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प्रश्न
_______ is the distance between the nucleus of the atom and its outermost shell.
पर्याय
Atomic radius
Atomic diameter
atomic mass
atomic size
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उत्तर
Atomic radius is the distance between the nucleus of the atom and its outermost shell.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the bracket:
Mg, Cl, Na, S, Si (decreasing order of atomic size).
Why is the size of neon greater than fluorine?
Give reason for the following:
Argon atom is bigger than chlorine atom.
What happens to the atomic size of elements on moving from left to right in a period?
Arrange the following as per the instruction given in the bracket.
Mg, Cl, Na, S, Si (increasing order of atomic size)
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The atomic size:
On moving from left to right in a periodic table, the size of the atom _______.
While going from top to bottom in a group the atomic radius _______.
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 of the following is the correct order of size?
Which of the following is the correct order of atomic size?
Which of the following gives the correct increasing order of the atomic radii of O, F, and N?
When an atom of iodine becomes an iodine ion (I–) the radius will ______
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide.
- Where in the periodic table are elements X and Y placed?
- Classify X and Y as metal (s), non-metal (s) or metalloid (s)
- What will be the nature of oxide of element Y? Identify the nature of bonding in the compound formed
- Draw the electron dot structure of the divalent halide
- 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.
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
