Chemistry
Complete the table pertaining to the following elements given in Column 1.
| Column 1 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 |
Periodic Table
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Answer
| Column 1 Elements | Atomic number | Electronic configuration | Underline the element present in that group |
|---|---|---|---|
| 1. Hydrogen | 1 | 1 | Na |
| 2. Carbon | 6 | 2, 4 | Si |
| 3. Nitrogen | 7 | 2, 5 | P |
| 4. Oxygen | 8 | 2, 6 | S |
| 5. Sulphur | 16 | 2, 8, 6 | O |
| 6. Chlorine | 17 | 2, 8, 7 | I |
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Group 1 [IA] elements are called alkali metals.
State the following.
- The group to which the element with electronic configuration of 2, 8, 2 belongs.
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Match the elements of List-I with their type from List-II.
List I List II 1. Highly reactive, univalent metals A: Halogens 2. Highly reactive, univalent non-metals B: Transition elements 3. Unreactive, inert elements C: Alkali metals 4. Elements of group 3 to 12 [IB to VIIB and VIII] D: Lanthanide series 5. Radioactive elements E: Noble gases F: Actinide series