What is LessonUp
Search
Channels
Log in
Register
‹
Return to search
Thursday_26: Calculating Ar
Pres_Template
CHEMISTRY 9
16 - Isotopes
1 / 17
next
Slide 1:
Slide
Chemistry
Secondary Education
This lesson contains
17 slides
, with
text slides
.
Lesson duration is:
50 min
Start lesson
Save
Share
Print lesson
Items in this lesson
Pres_Template
CHEMISTRY 9
16 - Isotopes
Slide 1 - Slide
state the
A
r
equation
use the
A
r
equation
to calculate elements' relative atomic mass
reflect on my thinking and learning using the self-reflection checklist.
Daily Review
Slide 2 - Slide
Complete the table in your notebook.
Use your pen to complete your task.
timer
3:00
Sulfur
Chlorine
Argon
Potassium
Calcium
Slide 3 - Slide
Complete the table in your notebook.
Use your pen to complete your task.
timer
3:00
Sulfur
Chlorine
Argon
Potassium
Calcium
S
C
l
Ar
K
Ca
16
-16
+16
17
-17
+17
18
19
20
-18
-19
-20
+18
+19
+20
Starter
Slide 4 - Slide
Open your Google Classroom.
Look for " I need to read this in advance.".
Slide 5 - Slide
Open your Google Classroom.
Look for " I need to read this in advance.".
Main Lesson
Slide 6 - Slide
Isotopes
Similarities
same chemical characteristics
appearance, so a sample of C-14 would look no different from C-12
Differences
Neutrons within the nucleus and mass only
Differences in mass affect physical properties such as density, boiling point, and melting point
Slide 7 - Slide
Relative atomic mass
A unit called the relative atomic mass (A
r
) is used
Relative atomic mass unit =
1/12
th
the mass of a carbon-12 atom
Slide 8 - Slide
Relative atomic mass
A unit called the relative atomic mass (A
r
) is used
Relative atomic mass unit =
1/12
th
the mass of a carbon-12 atom
Slide 9 - Slide
Imagine you have
90 balls
with a mass of
200 g
and
10 balls
with a mass of
300 g
. The
average mass
of the balls is given by:
Slide 10 - Slide
Imagine you have
90 balls
with a mass of
200 g
and
10 balls
with a mass of
300 g
. The
average mass
of the balls is given by:
Slide 11 - Slide
Imagine you have
90 balls
with a mass of
200 g
and
10 balls
with a mass of
300 g
. The
average mass
of the balls is given by:
Sample:
Slide 12 - Slide
Pres_Template
CHEMISTRY 9
16 - Isotopes
Slide 13 - Slide
state the
A
r
equation
use the
A
r
equation
to calculate elements' relative atomic mass
reflect on my thinking and learning using the self-reflection checklist.
Practice Activity
Slide 14 - Slide
Guided Practice: You do it together!
Prepare your notebook and pen.
Prepare the calculator of your device or a calculator.
Look for the copy of the
A
r
worksheet in your notebook.
Calculate the
A
r
of the given elements.
Share your work with the class.
timer
15:00
Plenary session
Slide 15 - Slide
Slide 16 - Slide
state the
A
r
equation
use the
A
r
equation
to calculate elements' relative atomic mass
explain the difference between mass number and relative atomic mass
Slide 17 - Slide
More lessons like this
Empirical and Molecular Formulae
September 2023
- Lesson with
44 slides
Chemistry
Secondary Education
Age 12,13
16/10: Relative atomic and molecular/formula mass
October 2024
- Lesson with
29 slides
Chemistry
Secondary Education
3.4.2 Atomic structure part 2
February 2021
- Lesson with
12 slides
Science
Secondary Education
1.1b Particles in the atom and atomic radius
August 2023
- Lesson with
11 slides
Chemistry
Secondary Education
Age 12,13
04/11: The Mole
November 2024
- Lesson with
26 slides
Chemistry
Secondary Education
Monday_23: The subatomic particles Part 2
September 2024
- Lesson with
31 slides
Chemistry
Secondary Education
Basic chemistry 4
March 2024
- Lesson with
15 slides
Chemistry
Upper Secondary (Key Stage 4)
GCSE
Relative Atomic Mass and the Mole
February 2024
- Lesson with
15 slides
Chemistry
Upper Secondary (Key Stage 4)
GCSE
Lesson duration is: 50 minLesson duration is: 50 min
