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प्रश्न
Name the type of elements which have outermost shell complete.
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उत्तर
Noble gases
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संबंधित प्रश्न
Fill in the following blank with suitable word:
Group 1 elements are called ...............
Give two example of group 1 elements.
Would you place the two isotopes of chlorine, CI-35 and CI-37 in different slots because of their different atomic masses or in the same slot because their chemical properties are the same? Justify your answer.
What is the usual number of valence electrons and valency of group 18 elements of the periodic table?
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period the periodic table?
The elements A, B, C and D belong to groups 1, 2, 14 and 17 respectively of the periodic table. Which of the following pairs of elements would produce a covalent bond?
(i) A and D
(ii) C and D
(iii) A and B
(iv) B and C
(v) A and C
Give the symbol and valency of the following element and radical.
Calcium
Give the chemical formula of sodium hydroxide
State any five features of modern periodic table.
Group 16 elements are collectively called as ______.
