Chemistry, 09.02.2021 07:30 leahumelinda
The element silicon has three major isotopes. Silicon-28 has an abundance of 92%. Silicon-29 has
an abundance of 4.7%. Silicon-30 has an abundance of 3.3%. What is the weighted average of the
atomic masses of silicon?
Answers: 2
Another question on Chemistry
Chemistry, 22.06.2019 00:00
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
Answers: 1
Chemistry, 23.06.2019 05:40
Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
Answers: 1
You know the right answer?
The element silicon has three major isotopes. Silicon-28 has an abundance of 92%. Silicon-29 has
an...
Questions
Mathematics, 25.03.2020 05:33
Chemistry, 25.03.2020 05:33
Chemistry, 25.03.2020 05:33
Mathematics, 25.03.2020 05:33
Mathematics, 25.03.2020 05:33
Mathematics, 25.03.2020 05:33
English, 25.03.2020 05:33
Mathematics, 25.03.2020 05:33
Advanced Placement (AP), 25.03.2020 05:33
