Finding Neutrons
Presentation
•
Chemistry
•
9th Grade
•
Hard
Joseph Anderson
FREE Resource
6 Slides • 6 Questions
1
Determining the number
of Protons, Neutrons and Electrons
Go through each slide and take notes in your notebook
2
Squares of the Periodic Table
• Atomic Number
– (# of protons)
• Symbol
• Name
• Atomic Mass
– (protons + neutrons)
3
Multiple Choice
What's the atomic number of Mercury?
6
Hg
80
200.59
4
Multiple Choice
What's the Atomic Mass of Mercury rounded?
200
201
80
81
5
Atomic Number
• Number of protons is also the number of electrons
• Each element has
different atomic number
6
Multiple Choice
If Gallium has 31 protons how many electrons does Gallium have?
69
31
70
7
Calculating neutrons
• If protons + neutrons =
atomic mass
• Then atomic mass –
protons = neutrons
8
9
Calculating neutrons practice
• Atomic Mass=37
• Atomic Number =17
• # of Neutrons =
Atomic Mass=35
Atomic Number =17
# of Neutrons =
M - A = N
10
Fill in the Blanks
Type answer...
11
Fill in the Blanks
Type answer...
12
Multiple Choice
Using your periodic table-- DFind the number of Neutrons for Barium.
81
137
56
82
Determining the number
of Protons, Neutrons and Electrons
Go through each slide and take notes in your notebook
Show answer
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