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

Complete the following chart. Shell K L N n 2 3 4 2n2 2 × 12 2 × 32 2 × 42 Electron holding capacity 2 8 18

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प्रश्न

Complete the following chart.

Shell n 2n2 Electron holding
capacity
K   2 × 12 2
L 2   8
  3 2 × 32 18
N 4 2 × 42  
तक्‍ता पूर्ण करा
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उत्तर

Shell n 2n2 Electron holding
capacity
K 1 2 × 12 2
L 2 2 × 22 8
M 3 2 × 32 18
N 4 2 × 42 32
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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Periodic Classication of Element - Solve the following Questions

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संबंधित प्रश्‍न

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
 11Na, 15P, 17Cl, 14Si, 12Mg Which of these has largest atoms?


Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
 19K, 3Li, 11Na, 4Be Which of these atoms has smallest atomic radius?


Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with an explanation.

13Al, 14Si, 11Na, 12Mg, 16S

Which of the above elements has the highest metallic character?


An element has its electron configuration as 2,8,2. Now answer the following questions.
i. What is the atomic number of this element?
ii. What is the valency of this element?
iii. What is the group of this element?
iv. To which period does this element belong?
v. With which of the following elements would this element resemble?

`_7N ,  _4Be  ,  _18Ar  , _17CL`


An element has its electron configuration as 2, 8, 2. Now answer the following question.

What is the group of this element?


An element has its electron configuration as 2, 8, 2. Now answer the following question.

To which period does this element belong?


Which among the following elements would lose an electron easily?


Which among the following is the largest element?


Answer the following question in one sentence.

Write the name of an element having electronic configuration 2,8,2.


Answer the following question in one sentence.

What determines the chemical reactivity of elements?


The number of electrons in the outermost shell of an atom determines the ______.


Write the name.

The element having stable electron configuration from the third period.


Write the name.

The group of elements having electronic configuration 2, 2.


Right or wrong sentence.

The valency of the elements in group 2 is 1.


Right or wrong sentence.

The elements lithium and beryllium are in the same period because their valencies are similar.


Write a scientific reason.

Boron and oxygen elements are placed in the second period in periodic table.


Write a scientific reason.

In group 2, beryllium and calcium elements, calcium is more electropositive element than beryllium.


Write name of elements, symbol, atomic number, electronic configuration of second period in modern periodic table?


Identify periods of elements and blocks of elements from given electronic configuration?

  1. 2, 8, 2
  2. 2, 8, 7
  3. 2, 1

What is the electronic configuration of K19?


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