subject
Chemistry, 26.10.2020 17:20 taminazaka1

A certain element has three isotopes. 92.2% has a mass number of 27.98, 4.68% has a mass of 28.98, and 3.09% has a mass of 29.97. The average atomic mass of the element is amu, and the element is .

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 07:00
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
Answers: 2
question
Chemistry, 22.06.2019 08:00
What is the standard unit of measure for acceleration?
Answers: 1
question
Chemistry, 22.06.2019 09:30
In apex! a liquid heated beyond a certain temperature becomes
Answers: 1
question
Chemistry, 22.06.2019 22:30
Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next
Answers: 3
You know the right answer?
A certain element has three isotopes. 92.2% has a mass number of 27.98, 4.68% has a mass of 28.98, a...
Questions
question
English, 29.11.2021 22:20
question
Mathematics, 29.11.2021 22:20
question
Mathematics, 29.11.2021 22:20