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3E Chemistry - Isotopes AND atomic structure
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Slide 1:
Slide
Scheikunde
Middelbare school
vwo
Leerjaar 3
This lesson contains
16 slides
, with
interactive quizzes
,
text slides
and
2 videos
.
Lesson duration is:
30 min
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Items in this lesson
Slide 1 - Slide
Lesson goals:
At the end of the lesson I can:
- explain what an isotopes in;
- calculated the amount of neutrons in a certain isotopes.
Prior knowledge:
Dalton task week 31: Atomic structure
Questions?
Slide 2 - Slide
Slide 3 - Video
The atomic mass of sodium is?
A
11 u
B
12 u
C
23 u
D
34 u
Slide 4 - Quiz
The amount of protons in this element is?
A
11
B
12
C
23
D
34
Slide 5 - Quiz
What is the atomic mass of this atom?
A
7 u
B
14 u
C
21 u
D
28 u
Slide 6 - Quiz
Drag the element symbol underneath to the correct atomic number, use your periodic table.
32 28 92 16 99
U
Ge
Es
S
Ni
Slide 7 - Drag question
Slide 8 - Video
What is an isotope?
A
same atom, different mass
B
different atom, same mass
C
same atom, different atomic number
D
different atom, same atomic number
Slide 9 - Quiz
Isotopes differ in ...
A
Amount of protons
B
Amount of electrons
C
amount of protons and electrons
D
Amount of neutrons
Slide 10 - Quiz
Which depicted atoms are isotopes?
White sphere: neutron
Black sphere: proton
A
1 and 3
B
2 and 3
C
1 and 2
D
1, 2 and 5
Slide 11 - Quiz
Which nucleus represents an isotope of the first element?
A
None
B
2
C
3
D
4
Slide 12 - Quiz
Iodine has an isotope with 127 particles in its nucleus.
This isotope has 53 protons and 74 neutrons.
How many electrons does this isotope of iodine have?
A
21
B
53
C
74
D
127
Slide 13 - Quiz
What is the amount of neutrons in
Sn-121?
A
71
B
70
C
50
D
121
Slide 14 - Quiz
Give the atomic masses of these three carbon isotopes.
A
6-6-6
B
6-7-8
C
12-13-14
D
18-19-20
Slide 15 - Quiz
Let's practice
Do in your notebook and check from your chemistry book:
- Q10 (p53);
- Q11-13 (p55).
Slide 16 - Slide
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