Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
Related questions
Question
Transcribed Image Text:125Te?
Expert Solution
Step 1
The given isotopic notion refers to Tellurium- 125.
The atomic number = 52 and
The mass number = 125.
Step 2
The mass number refers to the number of protons and neutrons in the given atom. The mass of these protons and neutrons in an atom is considered as atomic mass.
So, find the number of protons and neutrons in the given atom:
The atomic number = number protons = 52
The number of neutrons = mass number – atomic number
= 125 – 52 = 73
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Solved in 3 steps
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