samtompedigo7693 samtompedigo7693
  • 16-03-2022
  • Chemistry
contestada

Samarium-146 has a half-life of 103. 5 million years. After 1. 035 billion years, how much samarium-146 will remain from a 205-g sample? 0. 200 g 0. 400 g 20. 5 g 103 g.

Respuesta :

13riz 13riz
  • 16-03-2022
1.0.200g

Sample= 205g
Half-life= 103.5 millions years
Time= 1.035 billion years= 1035 million years

205g ———> 0.2001953g≈ 0.200g
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