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प्रश्न
How many atoms of each kind are present in the following molecule:
Calcium oxide
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उत्तर
Calcium oxide (CaO) has one atom of calcium and one atom of oxygen. The calcium atom valence shell has two electrons. As a result, it contributes two electrons to complete the octet, while oxygen requires two electrons to complete the outermost shell.
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संबंधित प्रश्न
In term of electron transfer, define
Reduction
Fill in the blanks.
The electrovalent bond or ionic bond is called as _____ bond
Explain fractional atomic mass. What is the fractional mass of chlorine?
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
Draw orbit structure diagram of sodium chloride (NaCl).
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Fe3+ + e- → Fe2+
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Draw the electron distribution diagram for the formation of Carbon di oxide (CO2 ) molecule.
What is meant by a chemical bond?
How many atoms of each kind are present in the following molecule:
water
