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

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation. 7N, 6C, 8O, 5B, 13Al Which is the most electronegative

Advertisements
Advertisements

प्रश्न

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

7N, 6C, 8O, 5B, 13Al Which is the most electronegative element among these?

संख्यात्मक
Advertisements

उत्तर

7N, 6C, 8O, 5B, 13Al
The electronic configuration of the following elements is:
7N =2, 5
6C = 2, 4
8O = 2, 6

5B = 2, 3
13Al = 2, 8, 3
8O is the most electronegative element among these because electronegativity increases as we move from left to right in a period of the periodic table.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Periodic Classification of Element - Exercise [पृष्ठ २९]

APPEARS IN

बालभारती Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
पाठ 2 Periodic Classification of Element
Exercise | Q 4. c. | पृष्ठ २९

संबंधित प्रश्‍न

An element has its electron configuration as 2, 8, 2. Now answer the following question.
a. What is the atomic number of this element?
b. What is the group of this element?
c. To which period does this element belong?
d. With which of the following elements would this element resemble? (Atomic numbers are given in the brackets)
N(7), Be(4), Ar(18), Cl(17)


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?


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

 6C, 3Li, 9F, 7N, 8O Which of the above elements has the highest nonmetallic 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?


______ is the outermost shell for elements of period 2.


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


Which among the following elements would lose an electron easily?


Answer the following question in one sentence.

What determines the chemical reactivity of elements?


Match the columns.

Column A Column B
1) s -block a) Lanthanides and actinides
2) p -block b) Group 3 to 12
3) d -block c) Group 1, 2
4) f -block d) Group 13 to 18
  e) Zero group

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


Beryllium and calcium are alkaline earth metals.


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

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

XY compound is formed by X (Atomic number 11) and Y (Atomic number 17), then answer the questions given below.

  1. Determine the position of the element X and Y periodic table.
  2. Which type of elements X and Y are metals, nonmetals or metalloids?
  3. From which block the elements X and Y are?
  4. Determine the electronic configuration and valency of these elements.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×