Fill-in the table below: Element Mass number Number of neutrons Number of protons Number of electrons Charge Isotope Notation Se 77 -1 65 36 +1 43 36 36 42 18 +2
Fill-in the table below: Element Mass number Number of neutrons Number of protons Number of electrons Charge Isotope Notation Se 77 -1 65 36 +1 43 36 36 42 18 +2
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...
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CHEM 154: Chemistry for Engineering
Name:
Student ID:
1. Fill-in the table below:
2022W
Element
Mass
number
Number of
neutrons
Number of
protons
cdn.discordapp.com
Number of
electrons
Charge
Isotope
Notation
Se
77
-1
65
36
+1
43
36
36
←
Unit 1: High School Review
42
18
+2
Expert Solution
Step 1
To fill the table, we would use the following relationships :
1.) Number of protons = atomic number of element.
So , from number of protons we can determine the element symbol.
2.) Mass number = number of proton + number of neutrons.
3.) For neutral atom ( which doesn't have any charge ) , number of protons = number of electrons.
4.) For a charged atom,
Number of electrons = number of protons - charge .
5.) Isotope notation is written using the symbol , atomic number and mass number .
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