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प्रश्न
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
पर्याय
2,8,9
8,2,9
2,8,8,1
1,2,8,8
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उत्तर
2,8,8,1
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संबंधित प्रश्न
How do atoms attain noble gas configuration?
State differences between the properties of ionic compounds and covalent compounds.
State the type of bonding in the following molecule.
Calcium oxide
Name the following:
Metal with valency 2
Draw orbit structure diagram of calcium oxide (CaO).
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidation.
Write down the electronic configuration of
(i) chlorine atom (ii) chlorine ion
Identify the following reaction as either oxidation or reduction:
Zn → Zn2+ + 2e-
Complete the table give below.
| Element |
Atomic number |
Electron distribution | Valence electrons | Lewis dot structure |
| Lithium | 3 | 1s22s1 | ||
| Boron | 5 | 1s22s22p1 | ||
| Oxygen | 8 | 1s22s22p4 |
How many electrons are required or released by each atom in chlorine to attain the nearest noble gas configuration?
