3E Chemistry - Isotopes AND atomic structure

1 / 16
next
Slide 1: Slide
ScheikundeMiddelbare schoolvwoLeerjaar 3

This lesson contains 16 slides, with interactive quizzes, text slides and 2 videos.

time-iconLesson duration is: 30 min

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