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प्रश्न
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a metal.
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
State differences between the properties of ionic compounds and covalent compounds.
Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).
What is the contribution of the following in atomic structure?
Democritus
Explain
Duplet rule for the formation of hydrogen
State the type of bond between Y and Z and give its molecular formula.
Give the orbital diagram of the following:
Methane
State the type of bonding in the following molecules.
Water,
Identify the following reaction as either oxidation or reduction:
K - e- → K+
The element that would form cation due to the loss of electrons during the chemical reaction is ______.
Match the following:
| 1. | Atomic bond | a. | Oxygen and hydrogen |
| 2. | Atoms with different electronegativities | b. | acceptor bond |
| 3. | An atom that accepts electron pair | c. | covalent bond |
| 4. | Rusting of iron | d. | donor atom |
| 5. | An atom that provides electron pair | e. | oxidation |
| f. | ionic bond |
