Counting Protons Neutrons and Electrons
Presentation
•
Science
•
12th Grade
•
Hard
Joseph Anderson
FREE Resource
4 Slides • 7 Questions
1
Determining the number of protons, neutrons, and electrons in atoms.
2
Remember:
Neutral Atom or Atom: an atom with no charge. Number of protons is equal to the number of electrons
Ions: an atom wher the number of protons does not equla the number of electrons.
More electrons are anions .
More Protons are cations
Isotopes: atoms with same number of protons but diffrerent number of neutrons
3
4
5
Multiple Choice
An element has 5 protons, 6 neutrons, and 5 electrons. What is the mass number?
5
10
11
16
6
Multiple Choice
An element has 5 protons, 6 neutrons, and 7 electrons. What is the charge of the atom?
+2
-1
+1
-2
7
Multiple Choice
How many protons are in an average Chlorine atom?
17
35
35.45
18
8
Multiple Choice
How many electrons are in an average Chlorine atom?
17
35
35.45
18
9
Multiple Choice
How many neutrons are in an average Chlorine atom?
17
35
35.45
18
10
Multiple Choice
The chlorine ion represented by the symbol Cl- has how many protons?
17
35
35.45
18
11
Multiple Choice
The chlorine ion represented by the symbol Cl- has how many electrons?
17
35
35.45
18
Determining the number of protons, neutrons, and electrons in atoms.
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