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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write information about the given atomic numbers in the table. 10, 20, 7. - Science and Technology 1

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प्रश्न

Write information about the given atomic numbers in the table. 10, 20, 7.

Atomic Number Electronic configuration Group Period Element
10        
20        
7        
टीपा लिहा
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उत्तर

Atomic Number Electronic configuration Group Period Element
10 2, 8 18 2 Neon (Ne)
20 2, 8, 8, 2 2 4 Calcium (Ca)
7 2, 5 15 2 Nitrogen (N)
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पाठ 2: Periodic Classication of Element - Answer the Following

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संबंधित प्रश्‍न

Give the trends in atomic size on moving across the period left to right.


Why is the size of sodium is greater than magnesium?


Which is greater in size an atom or a cation?


Which is greater in size Fe2+ or Fe3+?


Give reasons for the following:

The size of the anion is greater than the size of the parent atom.


Arrange the following in order of increasing radii:

CI- , CI 


Write the name and symbol of the element from the description.

The atom having the smallest size.


Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.


Arrange the following in increasing order of property indicated
 I, I+, I- (atomic size)


Select the correct answer
Atomic radii of fluorine and neon in angstrom unit are


Supply the missing word from those in the brackets:
If an element has seven electrons in its outermost shell then it is likely to have the ______ (largest/ smallest) atomic size among all the elements in the same period.


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.


Atomic radius is expressed in the unit _______.


Which of the following is the correct order of atomic size? 


Arrange the following elements in increasing order of their atomic radii.

  1. Li, Be, F, N
  2. Cl, At, Br I

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:

N, O, P

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 has the largest size?


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