Atomic Dimensions Are Often Reported in ÅNgstroms (1 Å =

question 15

Multiple Choice

Atomic dimensions are often reported in Ångstroms (1 Å = 1 × 10−¹⁰ m) .If the atomic radius of an aluminum atom is 1.43 Ångstroms,what is its radius in millimeters?

• A) 1.43 × 10−¹³ mm
• B) 1.43 × 10−⁷ mm
• C) 0.143 mm
• D) 14.3 mm
• E) 143 mm

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