Chemistry, 17.07.2019 22:30 deelashasharma
The barium isotope 133ba has a half-life of 10.5 years. a sample begins with 1.1×1010 133ba atoms. how many are left after (a) 5 years, (b) 30 years, and (c) 180 years?
Answers: 1
Chemistry, 22.06.2019 23:30
The sum of the oxidation numbers in a neutral compound is always
Answers: 2
Chemistry, 23.06.2019 05:50
Which of the following is not a characteristic of s waves?
Answers: 1
The barium isotope 133ba has a half-life of 10.5 years. a sample begins with 1.1×1010 133ba atoms. h...
Mathematics, 16.09.2021 03:50
Mathematics, 16.09.2021 03:50
Chemistry, 16.09.2021 03:50
Mathematics, 16.09.2021 03:50
Mathematics, 16.09.2021 03:50
Mathematics, 16.09.2021 03:50
Mathematics, 16.09.2021 03:50
Chemistry, 16.09.2021 03:50
Chemistry, 16.09.2021 03:50