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

______ is the outermost shell for elements of period 2.

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प्रश्न

______ is the outermost shell for elements of period 2.

पर्याय

  • K

  • L

  • M

  • N

MCQ
रिकाम्या जागा भरा
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उत्तर

L is the outermost shell for elements of period 2.

Explanation:

In the periodic table, the period number indicates the number of electron shells occupied by an element.

  • Period 1 elements have electrons only in the K shell (the 1st shell).
  • Period 2 elements have electrons in the K and L shells, making the L shell (the 2nd shell) their outermost shell.
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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Periodic Classication of Element - Choose the correct option. [पृष्ठ ३]

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एससीईआरटी महाराष्ट्र Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
पाठ 2 Periodic Classication of Element
Choose the correct option. | Q 7. | पृष्ठ ३

संबंधित प्रश्‍न

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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.

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(Atomic numbers are given in the brackets)

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Which pair of atomic numbers represents elements in the same group?


Find the odd one out and give its explanation.


Answer the following question in one sentence.

Write the name of the noble gas having 2 electrons in its valence shell.


Match the columns.

Column A
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1) 2, 2 a) 1
2) 2, 8, 1 b) 2
3) 2, 5 c) 3
  d) 5

Match the columns.

Column A Column B
1) Alkaline earth metals a) Group 18
2) Alkali metals b) Group 17
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4) Noble gas d) Group 1
  e) Group 14

Write the name.

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

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  1. What is the atomic number of element A?
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Distinguish between:

Group - Period


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


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  1. Write the name and valencies of the elements in 3rd row.
  2. Classify the elements in this row as metal, nonmetal and metalloids.
  3. Which block does nonmetals belong to?
  4. Write name of any two metalloid elements.

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