Chemistry, 02.07.2019 11:30 leoiscoolcool
Determine the number of protons, electrons, and neutrons for each isotope described below. 13. an isotope has atomic number 19 and number 39 14. an isotope has 14 electrons and a mass number of 28 15. an isotope has 21 neutrons and a mass number of 40 16. an isotope has an atomic number 51 and a mass number 123 answer the following question 17. which of the isotope in problems 13-16 are isotopes of the same element? identify the element?
Answers: 1
Chemistry, 21.06.2019 22:00
If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million
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Chemistry, 22.06.2019 18:40
What is the binding energy of a nucleus that has a mass defect of 5.81*10-^29 kg a 5.23*10-^12 j b 3.15* 10^12 j c 1.57*10-3 j d 9.44*10^20 j
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Chemistry, 22.06.2019 21:00
Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon
Answers: 1
Determine the number of protons, electrons, and neutrons for each isotope described below. 13. an is...
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