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Question
State whether the following statement is true or false
Al2O3 is an amphoteric oxide.
Options
True
False
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Solution
True
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RELATED QUESTIONS
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
Arrange the elements of second period in increasing order of their electron affinity. Name the elements which do not follow the trend in this period.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
Arrange the elements of group 17 and group 1 according to the given conditions.
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Why is the electron affinity of fluorine less than chlorine?
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.
Fill in the blank
Noble gases have ______ electron affinity.
Neon shows zero electron affinity due to ______.
The electron affinity of an element X is greater than that of element Y.
How is the oxidising power 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.
