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प्रश्न
Choose the correct answer from the options given below:
If an element A belongs to Period 3 and Group II, then it will have
A. 3 shells and 2 valence electrons
B. 2 shells and 3 valence electrons
C. 3 shells and 3 valence electrons
D. 2 shells and 2 valence electrons
उत्तर
3 shells and 2 valence electrons
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संबंधित प्रश्न
Give reason:
Electron affinity of halogens is comparatively high ?
Give reason:
Electronegativity of chorine is higher than Sulphur?
A, B, C are three elements in which B is an inert gas other than helium.With this information complete the following table.
| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | ||
| B | Z | ||
| C | Z + 1 |
Also, explain the following : Electron affinity of element A is more than that that of element C.
State whether the following statement is true or false
Al2O3 is an amphoteric oxide.
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
Choose the correct answer:
Among the period 2 elements the one which has high electron affinity is
Down the group, electron affinity ______.
On descending a group, ______ in ionisation potential as well as electron affinity ______ oxidising capacity.
The electron affinity of an element X is greater than that of element Y.
How is the electronegativity of X likely to compare with that of Y?
In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would probably have ______ electron affinity than B.
