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प्रश्न
Give the chemical formula of sodium hydroxide
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उत्तर
It denotes in a compound, the number of atoms of element present.
∴ Formula = \[\ce{NaOH}\]
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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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A
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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?
What is the significance of atomic number in the modern classification of elements? Explain with the help of an example.
Consider the following elements:
Ca, Cl, Na, I, Li, Ba, Sr, K, Br
Separate these elements into three groups (families) of similar properties. State one property in each case on the basis of which you have made your choice.
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
Write the number of protons, neutrons and electronic configuration of \[\ce{_19^39K, _15^31P}\]. Also state their position in periodic table.
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Give the symbol and valency of the following element and radical.
Bisulphite
The K and L shells of the elements Na and Mg contain electrons.
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
The maximum number of electrons that can be accommodated in s, p,d, and f subshells are ______.
