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14
1 NUMBERS, UNITS AN
Revision questions
1.1. The radii of several atoms and ions (in different units)
are as follows: Cr³+ 0.069 nm, F- 1.36 x 10-6 cm, O 1.40 X
10-5 mm. Express the radii in metres and arrange the particles
in order of increasing size.

Sagot :

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