... Free Radicals are molecules or ions that have an unpaired electron. They tend to be very reactive and are thought to contribute to the aging process. A "dimer" forms when two of the same molecules combine (dimerize). Draw a Lewis structure for each of the substances below and indicate which are free radicals. For a free radical the unpaired electron goes on the least electronegative element, which is usually the central atom. Key: ... y = Yes ... n = No 1. BrO2 2. OCl2 3. ClO2 4. NO2- Submit AnswerRetry Entire Group

the correct answer is answer a. a mixture

no other options make sense

hope this

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  - sprinkles

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percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally