Apidays New York 2024 - Scaling API-first by Ian Reasor and Radu Cotescu, Adobe
11/16/11
1. 11/17 A/B Day
LEQ: How can neutrons and electrons
affect the characteristics of an atom?
1. What is the difference between a convergent and
divergent boundary?
2. What is the name of the process that causes
tectonic plates to move and shift?
3. What is the law of superposition?
4. What is a proton?
5. What is an atom?
5. Today’s LEQ: How can neutrons and
electrons affect the characteristics of an
atom?
By the end of today, you should be able to…
1. Model isotopes when given a specific atomic
mass
2. Model ions when given specific charge
3. Tell the charge of a diagram of an atom
6. Make a hypothesis: Closest answer gets an
emergency pass!
When we change the number of protons in an atom,
it becomes a different element.
When we change the number of neutrons in an atom,
I think_________________________.
When we change the number of electrons in an atom,
I think_________________________________.
16. Normal Carbon Carbon ISOTOPE
They have a different
number of neutrons!
6 protons
6 protons
8 neutrons
6 neutrons
(Atomic Mass = 14)
(Atomic Mass = 12)
30. Draw and label in your notebook….
(nucleus only, but LEAVE ROOM FOR ELECTRON
ENERGY LEVELS! WE WILL ADD THESE LATER!)
1. Li-7
REMEMBER:
2. Li-5 (isotope)
3. N-14
4. N-15 (isotope)
5. F- 16 (isotope)
6. Ne-20
7. Ne-21 (isotope)
8. H-2 (isotope)
31. HOT Q:
How is an isotope different
from just a regular atom? What
about the atom CHANGES?
Hint:
32. THE MASS!!!
Isotope with
less neutrons
(or weight!)
Regular
Atom
Regular
Atom Isotope with
more neutrons
33. Isotopes and Absolute Dating: Reading
1.What is one way that scientists use isotopes?
2.What substance is found in all living things?
3.Do you think that carbon dating is a good way to
predict the age of something? (Is there anything
you think might make this process inaccurate?)
4.How do isotopes relate to our last unit of geologic
evolution and earth history?
34. Summarizer: PART ONE
Take a look at your hypothesis from the beginning of
class. It should look like this,
When we change the number of neutrons in an atom, I think _______.
1. Was your hypothesis correct? (Totally? Partially? Not at all?)
2. What ACTUALLY happens when we add or subtract the
number of neutrons in an atom? How do the
characteristics of the atom change? (YOU MUST USE THE
WORD ISOTOPE IN YOUR ANSWER!)
35. Today’s LEQ: How can neutrons and
electrons affect the characteristics of an
atom?
By the end of today, you should be able to…
1. Model isotopes when given a specific atomic
mass
2. Model ions when given specific charge
3. Tell the charge of a diagram of an atom
