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Complete the Table Pertaining to the Following Elements Given in Column I.

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प्रश्न

Complete the table pertaining to the following elements given in Column I.

Column I Elements Atomic Number Electronic Configuration Underline the element present in that group
1. Hydrogen 1 ______ Be/Na/Ca
2. Carbon 6 ______, ______ N/P/Si
3. Nitrogen 7 _______, ______ C/P/S
4. Oxygen 8 _______, ______ N/S/Cl
5. Sulphur 16 _____, ______, _______ O/N/F
6. Chlorine 17 _____, ______, ______ I/O/S
सारिणी
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उत्तर

Column I Elements Electronic Configuration Element
1. Hydrogen 1 Na
2. Carbon 2, 4 Si
3. Nitrogen 2, 5 P
4. Oxygen 2, 6 S
5. Sulphur 2, 8, 6 O
6. Chlorine 2, 8, 7 I
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अध्याय 5: The Periodic Table - Periodic Table

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विराफ जे दलाल Simplified ICSE Chemistry [English] Class 9
अध्याय 5 The Periodic Table
Periodic Table | Q 6

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An element 'X' belong to 3rd period and group 13 of the Modern Periodic Table.

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(c) Write the name and formula of the compound formed when 'X' combines with chlorine


Consider two elements 'X' (Atomic number 17) and 'Y' (Atomic number 20)

(i) Write the positions of these elements in the modern periodic table giving justification.

(ii) Write the formula of the compound formed by the combination of 'X' and 'Y'.

(iii) Draw the electron-dot structure of the compound formed and state the nature of the bond formed between the two elements ?


Choose the most appropriate answer of the following:

Which of the following would weigh the least?

(A) 2-gram atoms of Nitrogen.

(B) 1mole of Silver

(C) 22.4 liters of oxygen gas at 1 atmospheric pressure and 273K

(D) 6.02 x 1023 atoms of carbon.

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Name or state following with reference to the elements of the first three periods of the periodic table.

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