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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
Give electron dot diagram of the following:
nitrogen
State differences between the properties of ionic compounds and covalent compounds.
State the type of bonding in the following molecule.
Calcium oxide
Give a reason
Physical properties of isotopes are different.
Write down the electronic configuration of
(i) chlorine atom (ii) chlorine ion
Give the orbital diagram of the following:
Nitrogen
Copy and complete the following table relating to the atomic structure of some elements:
| Element | Atomic Number | Mass Number | Number of protons | Number of Neutrons | Number of Electrons |
| Beryllium | 4 | 9 | |||
| Fluorine | 9 | 10 | |||
| Sodium | 12 | 11 | |||
| Aluminium | 27 | 13 | |||
| Phosphorus | 31 | 15 |
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^40_20Ca}\]
How do atoms attain Noble gas electronic configuration?
How many atoms of each kind are present in the following molecule:
water
