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3 years ago

Of the elements fe li te u and he which are considered group b elements

Chemistry

2 answers:

kramer3 years ago

7 0

Only fe (iron) is in the group b of elements

givi [52]3 years ago

5 0

<u>Answer:</u> Iron is considered as a Group B element.

<u>Explanation:</u>

Mendeleev divided the periodic table into 8 groups, each divided into two sub-groups named as A and B. He arranged the elements according to their atomic masses.

Group A elements are considered as the elements which are present in s-block and p-block.

Group B elements are the transition elements. Transition elements are the elements that belong to d-block.

From the given elements:

Lithium (Group 1-A) and helium (Group VIII-A) are s-block elements.

Tellurium is a p-block (Group VI-A)element.

Uranium is a f-block element.

Iron is the d-block (Group VIII-B)element (transition element)

Hence, iron is considered as a Group B element.

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To calculate the molar solubility, we use the equation given by Henry's law, which is:

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$8.5\times 10^{-3}M=\frac{\text{Moles of }CO_2}{0.550L}\\\\\text{Moles of }CO_2=(8.5\times 10^{-3}mol/L\times 0.550L)=4.675\times 10^{-3}mol$

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1 mole of a compound contains $6.022\times 10^{23}$ number of molecules

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