1.The half-life of Ra226^{226}226 is 1620 years. Then the number of atoms decay in one second in 1 g1\,\text{g}1g of radium (Avogadro number =6.023×1023= 6.023 \times 10^{23}=6.023×1023)a.4.23×1094.23 \times 10^94.23×109b.3.16×10103.16 \times 10^{10}3.16×1010c.3.61×10103.61 \times 10^{10}3.61×1010d.2.16×10102.16 \times 10^{10}2.16×1010Login to continueOnly logged in users canattempt or see the solution.
