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प्रश्न
What is the contribution of the following in atomic structure?
Democritus
उत्तर
Democritus called paramanu as atom which comes from the Greek word atomos, meaning indivisible.
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संबंधित प्रश्न
How do atoms attain noble gas configuration?
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2,8,1 |
2,8,7 |
2,5 |
1 |
Answer the following questions based on the table above:
What is the formula of the compound formed between X and Z.
State the type of bonding in the following molecule.
Calcium oxide
What is an α (alpha) particle?
State one observation which shows that atom is not indivisible.
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.
An element M burns in oxygen to form an ionic compound MO. Write the formula of the compounds formed if this element is made to continue with chlorine and sulfur separately.
Sodium having atomic number 11, is ready to ______ electron/ electrons to attain the nearest noble gas electronic configuration.
Choose the odd one out and write the reason:
Write the basic concept of Kossel – Lewis theory.
