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प्रश्न
Name the type of elements which have one electron short of octet.
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उत्तर
Halogens
संबंधित प्रश्न
The position of three elements A, B and C in the Periodic Table are shown below –
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Group 16
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Group 17
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−
|
−
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|
−
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A
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|
−
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−
|
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B
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C
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(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
Fill in the following blank with suitable word:
The horizontal rows in a periodic table are called ...............
The modern periodic table was prepared by ______.
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
Name two elements in Alkaline earth metals.
Name the type of elements which have outermost shell incomplete.
Name an alkali metal in period 3 and halogen in period 2.
Name and state the following with reference to the elements of the first three periods of the periodic table.
A covalent compound formed by an element in period 2 and a halogen.
Answer the following question.
Define the atomic size. Give its unit of measurement. In the modern periodic table what trend is observed in the atomic radius in a group and a period and why is it so?
What is the symbol of the element Tungsten?
