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प्रश्न
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a metal.
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उत्तर
Electronic configuration of element A = (2, 8, 8, 1) at atomic no. 19
∴ Element B having 1 electron in outermost orbit is a Metal.
संबंधित प्रश्न
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?
What type of bond is formed between two atoms, when the electronegative difference between them is low ?
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Define the term:
orbit
Explain fractional atomic mass. What is the fractional mass of chlorine?
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Choose the odd one out and write the reason:
Complete the following table:
| a. | Dativebond | ______ |
| b. | CaH2 → Ca+H2 | ______ |
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| d. | ______ | Redox reaction |
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
