Physics, 03.01.2020 20:31 kobiemajak
Samarium has a half-life of approximately 106 billion years. if you found a sample of samarium from the beginning of earth's history, approximately 4.6 billion years ago, which would be the best approximation of the amount of parent isotope left in the rock?
a nearly 100 percent
b 50 percent
c 25 percent
d less than 10 percent
brainliest for the correct answer and 20 pts~!
Answers: 3
Physics, 21.06.2019 19:00
Like a key in a lock, the shape of the. must bind with the. of the recieving neuron
Answers: 1
Physics, 21.06.2019 21:30
Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?
Answers: 3
Physics, 22.06.2019 11:30
If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?
Answers: 1
Physics, 23.06.2019 01:00
What happens when the vapor pressure of a liquid is equal to the external pressure?
Answers: 1
Samarium has a half-life of approximately 106 billion years. if you found a sample of samarium from...
History, 20.04.2020 23:11
Mathematics, 20.04.2020 23:11
History, 20.04.2020 23:11
Mathematics, 20.04.2020 23:11
English, 20.04.2020 23:12
Mathematics, 20.04.2020 23:12
Mathematics, 20.04.2020 23:12
Mathematics, 20.04.2020 23:12
History, 20.04.2020 23:12
Mathematics, 20.04.2020 23:12