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प्रश्न
Moving from left to right, the size of the atom decreases.
पर्याय
Right
Wrong
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उत्तर
Moving from left to right, the size of the atom decreases- Right
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संबंधित प्रश्न
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.
What happens to the atomic size of elements on moving from left to right in a period?
The size of an atom is indicated by its _______.
Atomic radius is expressed in the unit _______.
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
Which of the following is the correct order of atomic size?
Which of the following is the correct order of size?
Which of the following gives the correct increasing order of the atomic radii of O, F and N?
Elements have been arranged in the following sequence on the basis of their increasing atomic masses.
| F, | Na, | Mg, | Al, | Si, | P, | S, | Cl, | Ar, | K |
- Pick two sets of elements which have similar properties.
- The given sequence represents which law of classification of elements?
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
Atomic number of a few elements are given below
10, 20, 7, 14
- Identify the elements
- Identify the Group number of these elements in the Periodic Table
- Identify the Periods of these elements in the Periodic Table
- What would be the electronic configuration for each of these elements?
- Determine the valency of these elements
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
Arrange the following in order of increasing radii:
Cl−, Cl
Explain your choice.
In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would have ______ atomic size than B.
Which one of the following has the largest atomic radius?
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
