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Write the Electronic Configuration of Element 17t35. What is the Group Number of T? - Chemistry

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प्रश्न

Write the electronic configuration of element 17T35.

  1. What is the group number of T?
  2. What is the period number of T?
  3. How many valence electrons are there in an atom of T?
  4. What is the valency of T?
  5. Is it a metal or non-metal?
  6. State number of protons and neutrons in T.
एका वाक्यात उत्तर
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उत्तर

K L M
Electronic configuration = 2, 8, 7

  1. VIIA
  2. Third period
  3. Seven
  4. Valency of T = -1
  5. Non-metal
  6. Protons = 17, Neutrons = 18
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पाठ 5: The Periodic Table - Exercise 5 (B) [पृष्ठ ८९]

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सेलिना Concise Chemistry [English] Class 9 ICSE
पाठ 5 The Periodic Table
Exercise 5 (B) | Q 15 | पृष्ठ ८९

संबंधित प्रश्‍न

The elements Be, Mg and Ca each having two electrons in their outermost shells are in periods 2, 3, and 4 respectively of the modern periodic table. Answer the following questions, giving justification in each case:-

(i) Write the group to which these elements belong.

(ii) Name the least reactive element.

(iii) Name the element having largest atomic radius.


Name the element that has two shells, both of which are completely filled with electrons.


The following table shows the electronic configuration of the elements W, X, Y, Z:

Element w x y z
Electronic
configurations
2, 8, 1 2, 8, 7 2, 5 1

Answer the following questions based on the table above:

1) What type of Bond is formed between :

a) W and X

b) Y and Z

2) What is the formula of the compound formed between :

a) X and Z

b) W and X


In each of the following pair, choose the atom having the bigger size:

Na (At. No. 11) or K (At. No. 19)


Periodicity is observed due to the similar ______.


Chorine in the periodic table is surrounded by the elements with atomic number 9, 16, 18 and 35.

Which is more electronegative than chlorine?


State the number of elements in period 1, period 2 and period 3 of the periodic table.


What is the common feature of electronic configurations of the elements at the end of period 2 and period 3?


The elements of one short period of the periodic table are given below in order from left to right: 

Li Be B C O F Ne

Which one of the above elements belongs to the halogen series?


Give a reason for the following:

A transition from metallic to non-metallic elements is seen on moving from left to right in a period of the periodic table.


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