140 55 Cs undergoes beta decay, emitting an electron. Its half-life is 66 s. A sample contains 2.56.
140 55 Cs undergoes beta decay, emitting an electron. Its half-life is 66 s. A sample contains 2.56 × 1020 atoms of 140 55 Cs. (a) How many 140 55 Cs atoms are in the sample after 143 s? Give the answer to 2 significant figures. (b) How many electrons were emitted during that time interval? Give the answer to 3 significant figures. Apr 08 2022 02:04 PM
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