Revisiting the Basic Concepts on Atoms
Presentation
•
Chemistry
•
9th - 12th Grade
•
Medium
Leah Lecerio
Used 4+ times
FREE Resource
14 Slides • 12 Questions
1
2
I can define what an atom is.
I can recall the subatomic particles in an atom.
I can determine certain information about an atom/ion such as atomic number, mass number, and net charge, based on the number of its subatomic particles.
3
Open Ended
What are the ideas that come to your mind whenever you hear the term atom?
4
Atom is the basic unit of matter that retains the physical and chemical properties of a substance or any form of matter.
5
Multiple Choice
The word atom is derived from the Greek word "atomos" which means "indivisible". Are atoms really indivisible?
Yes, atoms are INDIVISIBLE.
No. That's an ancient misconception.
6
particle accelerator, a.k.a. "atom smasher"
7
8
9
10
Multiple Select
Which two subatomic particles are considered in calculating for the MASS NUMBER of an atom?
electron
neutron
proton
11
Open Ended
Why are electrons disregarded in calculating for the mass number of a given atom?
12
The mass of an electron is negligible compared to the mass of a proton or a neutron.
13
14
15
(RECALL OF JHS CHEMISTRY CONCEPTS)
16
17
18
19
Multiple Choice
What is the mass number of an element with the following subatomic particles?
protons = 35
neutrons = 45
electrons = 35
35
70
80
20
Multiple Choice
What is the atomic number of an element with the following subatomic particles?
protons = 35
neutrons = 45
electrons = 35
35
45
70
80
21
Multiple Choice
What is the net charge of an element with the following subatomic particles?
protons = 35
neutrons = 45
electrons = 35
zero
35
45
70
22
Multiple Choice
What is the mass number of an element with the following subatomic particles?
protons = 10
neutrons = 9
electrons = 10
10
19
20
23
Multiple Choice
What is the atomic number of an element with the following subatomic particles?
protons = 10
neutrons = 9
electrons = 10
9
10
19
20
24
Multiple Choice
What is the net charge of an element with the following subatomic particles?
protons = 83
neutrons = 126
electrons = 80
+3
-3
zero
+46
25
Multiple Choice
What is the net charge of an element with the following subatomic particles?
protons = 7
neutrons = 7
electrons = 10
-3
+3
+17
zero
26
Open Ended
Is there anything that you would like to further learn about ATOMS and MATTER in the next meetings to come? If yes, what would that be?
Show answer
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