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Below are some elements of modern period...

Below are some elements of modern periodic table
`""_4Be , ""_9F, ""_14Si, ""_19K,""_20Ca`
Identify the element that belong to halogen family

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To identify the element that belongs to the halogen family from the given list of elements, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Halogen Family**: The halogen family consists of elements that are found in Group 17 of the periodic table. These elements typically have 7 valence electrons. 2. **List the Given Elements**: The elements provided are: - Beryllium (Be) with atomic number 4 ...
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Name or state with reference to the elements of the modern periodic table. The period and group to which the element 'X' with electronic configuration 2, 8, 8, 2 belongs.

Complete the following crossword puzzle (Figure) Across (1) An element with atomic number 12 (3) Metal used in making cans and member of group 14 (4) A lustrous non-metal which has 7 electrons in its outermost shell Down (2) Highly reactive and soft metal which imparts yellow colour when subjected to flame and is kept in kerosene (5) The first element of second period (6) An element whihc is used in making flurescent bulbs and is second member of group 18 in the modern periodic table (7) A radioactive element which is the last member of halogen family (8) Metal which is an important constituent of steel and forms rust when exposed to moist air (9) The first metalloid in modern periodic table whose fibres are used in making bullet-proof vests

Name or state with reference to the elements of the modern periodic table. The element, from the elements Li, Na, K, having the least number of electron shells.

Name or state with reference to the elements of the modern periodic table. The element from the elements C, O, N, F, having the maximum nuclear charge.

Name or state with reference to the elements of the modern periodic table. The element from the elements Li, Na, K which has maximum metallic character.

Given below are the names of few elements based on their position in the periodic table. Identify the element which is not correctly placed.

(a) How is the valency of an element determined if its electronic configuration is known? Determine the valency of an element of atomic no. 9 (b) Given below are some elements of the Modern Periodic Table. Atomic numbers of the elements are given in the parentheses: A(4), B(9), C(14), D(19), E(20) (i) With the help of the electronic configuration, find out which one of the above elements will have one electron in its outermost shell? (ii) Which rwo elements belong to the same group? Give reasons for your answer. (iii) Which one of the above elements belonging to the fourth period has bigger atomic radius and why?.

ICSE-THE PERIODIC TABLE -TOPIC 2 Studying Individual Groups (2 Marks Questions)
  1. Name or state the following with reference to the element of the first...

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  2. Complete the table :

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  3. Complete the table :

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  4. Name the method by which alkali metals can be extracted.

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  5. What is the colour of the flame of sodium and potassium ?

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  6. How many electrons do inert gases have in their valence shells ?

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  7. Name an element of group 18 which can form compounds.

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  8. Why group 17 elements are called halogens?

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  9. Give use of Helium gas

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  10. Give use of neon gas

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  11. The table given below shows the position of element U, V, X, Y and Z....

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  12. The table given below shows the position of element U, V, X, Y and Z....

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  13. What is the action of air on (i)Alkali metals (ii) Provide chemical ...

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  14. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  15. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  16. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  17. Below are some elements of modern periodic table ""4Be , ""9F, ""14S...

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  18. Write the name of two elements in group I.

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  19. Write the chemical reaction to show formation of hydrides and oxides w...

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  20. State two properties of group I elements.

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