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

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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.
एक पंक्ति में 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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अध्याय 5: The Periodic Table - Exercise 5 (B) [पृष्ठ ८९]

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

संबंधित प्रश्न

An element Z has atomic number 16. Answer the following questions on Z:

  1. State the period and group to which Z belongs.
  2. Is Z a metal or a non-metal?
  3. State the formula between Z and hydrogen.
  4. What kind of a compound is this?

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How do the following change on moving from left to right in a period of the periodic table?
Give examples in support of your answer.

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What is meant by periodicity of elements?


Copy and complete the following sentence choosing the correct word or words from those given below, at the end of the sentence:
The similarities in the properties of elements belonging to a group are because they have the same ______ 


In the above table, H does not represent hydrogen.Some elements are given in their own symbol and position in the periodic table while others are shown with a letter. With refrence to the table answer the following questions.
1. Identify the most electronegative element.
2. Identify the most reactive element of Group I.
3. Identify the element from Period 3 with least atomic size.
4. How many valence electrons are present in Q?
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is it a metal or non-metal


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A. metal (i) The metal that forms two types of ion.
B. iron (ii) An element with electronic configuration 2, 8, 8, 3.

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