https://socratic.org/questions/what-is-an-example-of-a-practice-problem-with-isotopes

Aug 27, 2014 ... Isotopes are atoms of the same element that have different mass ... answer means, similarly to the examples given in the 3rd problem in the ...

https://www.chemteam.info/Mole/AvgAtomicWt-Reverse.html

Let's start by repeating the solution for nitrogen from the Average Atomic Weight tutorial: ... Problem #1: Nitrogen is made up of two isotopes, N-14 and N-15.

https://www.youtube.com/watch?v=n4WZ0-fItt8

Sep 29, 2012 ... To see all my Chemistry videos, check out http://socratic.org/chemistry In this video we'll look at how to determine, calculate and solve for ...

https://www.youtube.com/watch?v=2h7tHhJI_yg

Nov 24, 2013 ... In this video Mr. Swarthout shows you how to use your periodic table to answer simple isotope questions. You can see a listing of all my videos ...

https://www.onlinemathlearning.com/relative-atomic-mass.html

Chemistry: How to calculate Atomic Mass of an element, Isotopes, Isotope ... math problem solver that answers your questions with step-by-step explanations.

https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/introduction-to-the-atom/e/isotope-composition-counting-protons-electrons-and-neutrons-exercise

An isotope contains 11 protons, 10 electrons, and 12 neutrons. What is the identity of the isotope? Choose 1 answer: Choose 1 answer: .... Do 7 problems.

https://sciencing.com/solve-chemistry-isotope-problems-8366117.html

Apr 24, 2017 ... How to Solve Chemistry Isotope Problems. By Kristen Gonsoir; Updated .... Check you answer to see if it makes sense. The weighted average ...

http://www.chemistry.wustl.edu/~coursedev/Online%20tutorials/Plink/atommasskey.htm

Practice Problems: Atomic Mass (Answer Key). The element bromine has three naturally-occurring isotopes. A mass spectrum of molecular Br2 shows three ...

https://www.proprofs.com/quiz-school/story.php?title=isotopes-practice-quiz

May 16, 2017 ... A 5-question practice quiz for the topic on Isotopes at www. ... Questions and Answers ... In an isotope, which part of the atom changes? A.

http://www.cabrillo.edu/~aromero/CHEM_1A/1A_Practice_Problems/Practice%20Problems%20(Chapter%201)%20Isotopes%20-%20KEY.pdf

Practice Problems: Isotopes. CHEM 1A. 1. Determine the number of protons, neutrons and electrons in each of the following: 2. Give the complete symbols for  ...