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Chart:
Element l Atomic Radius l Ionic Radius l
------------------------------------------------------------
Potassium l 227 pm l 133 pm l
------------------------------------------------------------
Iodine l 133 pm l 216 pm l

18. What is the percent change when an iodine atom (I) becomes ion (I-)?
19. What is the percent change when a potassium atom (K) becomes an ion (K+)?

Respuesta :

Answer:

18) -41.4%

19) 62.4%

Step-by-step explanation:

18) % change =

[tex]\frac{x2 - x1}{x1}\\\\= \frac{133-227}{227}\\\\= \frac{-94}{227}\\\\= -0.41409* 100\\\\= -41.4[/tex]

19) % change =

[tex]\frac{x2 - x1}{x1}\\\\= \frac{216-133}{133}\\\\= \frac{83}{133}\\\\= 0.62406\\\\= 62.406[/tex]

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