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Atomic Number and Mass Number

With the help...

Question

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

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Solution

Mass number of oxygen = Number of protons + Number of neutrons

= 8 + 8

= 16

Mass number of sulphur = Number of protons + Number of neutrons

= 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.

Q. 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.

Q. If the table of atomic masses were established with the oxygen atom and assigned value of

100

, then the mass of carbon atom would be, approximately:

Q. The number of oxygen atoms in 20 gm of sulphur tri-oxide

{S O}_{3}

is the same as these present in x gms of Ozone. The atomic mass of sulphur and oxygen are 32

μ

μ

respectively. Find the value of

μ

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