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प्रश्न
An element belongs to the third period and Group IIIA (13) of the periodic table. State: the name of the element.
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उत्तर
The name of the element is Aluminium.
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संबंधित प्रश्न
Based on the group valency of elements state the formula lot the following giving justification for each :-
(i) Oxides of 1st group elements,
(ii) Halides of the elements of group 13, and
(iii) Compounds formed when an element of group 2 combines with, an element of group 16.
The following table shows the electronic configuration of the elements W, X, Y, Z:
| Element | w | x | y | z |
| Electronic configurations |
2, 8, 1 | 2, 8, 7 | 2, 5 | 1 |
Answer the following questions based on the table above:
1) What type of Bond is formed between :
a) W and X
b) Y and Z
2) What is the formula of the compound formed between :
a) X and Z
b) W and X
How does the valency of elements vary in going down a group of the periodic table?
Name the element which is in first group and third period.
In terms of electronic configurations, explain the variation in the size of the atoms of the elements belonging to the same period and same group ?
Why are noble gases placed in a separate group?
How do the following change on moving from left to right in a period of the periodic table?
Give examples in support of your answer.
atomic structure (electron arrangements) ?
Fill in the blank
Oxidising property ________from fluroine to iodine because the power to accpet electron decreases.
Name the elements in period 1.
Name or state following with reference to the element of the first three periods of the periodic table.
A non-metal in period 2 having electronic configuration 2, 6.
