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प्रश्न
Why do they exist as monoatoms in molecules?
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उत्तर
These exist as monoatoms because molecules of these elements contain only one atom.
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संबंधित प्रश्न
What type of bond is formed between two atoms, when the electronegative difference between them is zero?
An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
Match the atomic numbers 4, 14, 8, 15 and 19 with each of the following:
- A solid non-metal of valency 3.
- A gas of valency 2.
- A metal of valency 1.
- A non-metal of valency 4.
Define the term:
orbit
What do you understand by redox reactions?
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidizing agent.
Element M forms a chloride with the formula MCl2 which is solid with a high melting point. What type of bond is in MCl2. Write the formula of the compound when M combines with sulphur, oxygen, and nitrogen.
Identify the following reaction as either oxidation or reduction:
O + 2e- → O2-
How many atoms of each kind are present in the following molecule:
Chlorine
