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Schematic atomic structures of three ele...

Schematic atomic structures of three elements are given below:

Which of the following is the correct formula of the compound formed by the given three elements?

A

`Na_3 PO_4`

B

`Na_32 CO_3`

C

`Na_2 SO_4`

D

`Na_2 SO_3`

Text Solution

Verified by Experts

The correct Answer is:
B
Three elements have the electronic configuration (2,4), (2,6) and (2,8,1) respectively. Hence, the elements are carbon (C), oxygen (0) and sodium (Na). The charge on Na is +1 and on carbonate `(CO_3) `is -2.

thus the formula of the compound formed by these elements is `Na_2 CO_3`
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