Question 2 TableOxygen-O-8-8-8WWline Sulphur-S-16-16-16Whlinelend array With the help of table- find out the mass number of oxygen and sulphur atom-

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Standard IX

Chemistry

Mass Number and Representation of Atom

Question 2 Ta...

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Question 2
Table
$\begin{matrix} N a m e o f t h e e l e m e n t & S y m b o l & N u m b e r o f p r o t o n s & N u m b e r o f n e u t r o n s & N u m b e r o f e l e c t r o n s O x y g e n & O & 8 & 8 & 8 S u l p h u r & S & 16 & 16 & 16 \end{matrix}$
With the help of table, find out the mass number of oxygen and sulphur atom.

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Solution

From table,
Number of protons in an oxygen atom = 8
Number of neutrons in an oxygen atom=8
Mass number of oxygen = 8+8 = 16

Number of protons in a sulphur atom = 16
Number of neutrons in a sulphur atom =16
Mass number of a sulphur atom = 16+16 = 32

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Question 2
Table
$\begin{matrix} Name of the element & Symbol & Number of protons & Number of neutrons & Number of electrons Oxygen & O & 8 & 8 & 8 Sulphur & S & 16 & 16 & 16 \end{matrix}$
With the help of table, find out the mass number of oxygen and sulphur atom.

Q. Observe the following table:

\begin{matrix} Name of the element & Symbol & Number of protons & Number of neutrons & Number of electrons Oxygen & O & 8 & 8 & 8 Sulphur & S & 16 & 16 & 16 \end{matrix}

With the help of table, find out the mass number of oxygen and sulphur atom.

With the help of Table 4.1, find out the mass number of oxygen and sulphur atom.

Q. The number of bonds between sulphur and oxygen atoms in

S_{2} O_{8}^{2 -}

and number of bonds between sulphur and sulphur atoms in rhombic sulphur, respectively, are:

Question 10
Calculate the number of molecules of sulphur $(S_{8})$ present in 16 g of solid sulphur.

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Question 2 Table Name of the elementSymbolNumber of protonsNumber of neutronsNumber of electronsOxygenO888SulphurS161616 With the help of table, find out the mass number of oxygen and sulphur atom.

From table, Number of protons in an oxygen atom = 8 Number of neutrons in an oxygen atom=8 Mass number of oxygen = 8+8 = 16 Number of protons in a sulphur atom = 16 Number of neutrons in a sulphur atom =16 Mass number of a sulphur atom = 16+16 = 32

From table,
Number of protons in an oxygen atom = 8
Number of neutrons in an oxygen atom=8
Mass number of oxygen = 8+8 = 16

Number of protons in a sulphur atom = 16
Number of neutrons in a sulphur atom =16
Mass number of a sulphur atom = 16+16 = 32