Advertisements
Advertisements
प्रश्न
Compare :
Sodium atom and sodium ion
उत्तर
|
Sodium atom |
Sodium-ion |
|
Sodium atom is electrically neutral. |
Sodium-ion is positively charged. |
|
In sodium atom, there are 11 protons and 11 electrons, i.e. an equal number of protons and electrons. |
In sodium-ion, there are 11 protons but 10 electrons, i.e. sodium ion contains a lesser number of electrons. |
|
The sodium atom has only one electron in its valence shell. |
Sodium-ion has 8 electrons in its valence shell. |
|
The size of a sodium atom is larger than a sodium ion. |
The size of a sodium ion is smaller than a sodium atom. |
APPEARS IN
संबंधित प्रश्न
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?
What type of bond is formed between two atoms, when the electronegative difference between them is low ?
Separate the following compounds into three categories - ionic, polar and covalent compounds; N2, NH4Cl, NH3, NO, NH4NO3, NCl3.
How many electrons are required or released by each atom in calcium oxide to attain the nearest noble gas configuration?
State the following is a reduction reaction or oxidation reaction.
\[\ce{Pb -> Pb^2+ + 2e-}\]
Name the following:
An element having valency 'zero'
Explain the following:
Carbon-12 and carbon-14 both show similar chemical properties.
How do atoms attain Noble gas electronic configuration?
______ theory explains the formation of molecules.
Match the following:
| 1. | Monoatomic gaseous atom | a. | Electrovalent bond |
| 2. | Octet rule | b. | Benzene |
| 3. | Ionic bond | c. | Water |
| 4. | Non-polar solvent | d. | Electronic theory of valence |
| 5. | Polar solvent | e. | Noble gases |
