Question

Please help a kid out, will ya?! This is due in 40 minutes.
Q - Place Te2- , F- and O2- in the order of decreasing atomic radius.
Please don't let me down. This can either tank my grade or make it fly through the roof.​

Answer 1

☆ order to remember :

》in the same group more the ions are at bottom more will their radius, as size increases from top to bottom.

》along the period, size decreases from left to right..due to $\sf{ Z_{eff}}$

☆Solution:

from above points...we know that

》$\ Te^{2-} > O^{2-}$

》$\ O^{2-} > F^{2-}$

so which option is satisfying all points....

A) is correct giving the correct order.

$\bf{ Te^{2-} > O^{2-} > F^{1-}}$

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Answer 2

Answer:

☆ order to remember :

》in the same group more the ions are at bottom more will their radius, as size increases from top to bottom.

》along the period, size decreases from left to right..due to \sf{ Z_{eff}}Z

eff

☆Solution:

from above points...we know that

》\ Te^{2-} > O^{2-} Te

2−

>O

2−

》\ O^{2-} > F^{2-} O

2−

>F

2−

so which option is satisfying all points....

A) is correct giving the correct order.

\bf{ Te^{2-} > O^{2-} > F^{1-}}Te

2−

>O

2−

>F

1−

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