identifying the number of Protons, Electrons, Neutrons

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2. students who has
issues with
mobility, vision
and hearing
please sit in front

3. RULES:
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If he or she speaks,
you listen
YOUR TURN
WILL COME

4. Do you still
remember what we
discussed
yesterday?

5. What can you say is
the similarity of a
comet to an asteroid?

6. •What do we call the smallest
building blocks of matter?
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What are the parts of an atom?

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8. 8
1. What is the Atomic Number of
the element?
2. How about its atomic weight?

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Objectives:
1. Calculate the mass number of given
elements.
2. Determine the number of proton, neutrons
and electrons in an atom.
3. Cultivate an awareness of the significance
of protons, electrons, and neutrons in various
fields such as Chemistry, Physics and
Engineering.

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“What’s in a number?”
Girls vs Boys
EDITION

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Elements Atomic Mass Atomic Number
Lithium 7 3
Calcium 40 20
Oxygen 16 8
Nitrogen 14 7
Potassium 39 19

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Which sub-atomic particle do you think
has the same number with Atomic
number?

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The class will be grouped
into 4:
Each groups will have a
different task and name.

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How do you describe a
meteor when viewed
from the Earth?
Elements Atomic
Mass
Atomic
Number
Number
of protons
(p+)
Number of
electrons
(e-)
Number of
neutrons
(n0)
Lithium 7 3 3 3 4
Calcium 40 20 20 20 20
Oxygen 16 8 8 8 8
Nitrogen 14 7 7 7 7
Potassium 39 19 19 19 20

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Given the number of protons,
electrons and neutrons, what
can you conclude from the table
based on the number of protons,
electrons and neutrons?

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What is a meteor
shower?

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1. How do you determine the number of protons given
the atomic mass and atomic number of element?
2. Differentiate the number of protons and the
number of electrons of each element.
3. What factor should you consider in determining
the number of neutrons? Can you give the
equation?

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1. What can you say
about the pictures?
2. How is this related to
the topic?

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1. can you name anything you know
that uses proton, electron or
neutrons?

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1. In what way do we appreciate and
recognize the significance of the sub
atomic particles in the progress of
society ? in terms of Technology?
Medicine? Energy?

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1. What is the formula for getting the
neutron?
2. what subatomic particle has the
same number with proton?
3. what subatomic particle has the
same number with the atomic number?

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Let’s try to see
if you
learned…..

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Using a short
coupon bond,
make an element
card similar to the
given example.
A
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