Download 2 - DanaFrank

Warm Up….complete on the top third of page 5 in your notebook
1.Where is the mass in an atom?
2.What is the overall charge of the nucleus of an atom?
How do you know?
3. Sesame street: For the 4 vocab terms listed, Which three go
together? WHY? Which does not belong? WHY?
Homework:
Study for Quiz
States of matter
Atomic structure
Periodic table cells
Proton
Nucleus
Electron
Neutron
Date
Session
#
9/1-2
2
Activity
Page
#
Subatomic Particle Calculations
5
Subatomic Information on the Periodic Table -Notes
6
8.P.1 Understand the properties of matter and
changes that occur when matter interacts in an
open and closed container.
8.P.1.1 Classify matter as elements, compounds,
or mixtures based on how the atoms are packed
together in arrangements.
TLW calculate atomic structure by taking notes,
summarizing demonstrations and completing
atom family periodic table cells.
Bringing it all together…
For example, OXYGEN is an element on the
periodic table.
It is made of only one type of atom
Actual Oxygen Atom
Oxygen on the Periodic Table
P6
PERIODIC TABLE CELLS
Atomic Number =
number of protons
In a neutral atom, the number of
protons is equal to the number of
electrons
What other numbers in your life act as an identification number?
SYMBOL RULES:
•ELEMENTS START WITH A
CAPITAL LETTER
•Any other letters in the
symbol are lower case…Just
like when you write your name
Co ≠ CO !!
CO ≠ Co
P 5 middle section
Comparing protons, neutrons & electrons
Mass demonstration (this is text!!)
EVIDENCE
I saw, I noticed….
INTERPRETATION
I wondered, connected, inferred,
concluded…
The mass of an atom is….
Based on the demonstration, what can you conclude about
the relationship between an atom’s mass and its subatomic
particles?
How can you use the information in the cells of the
periodic table to find the number of neutrons in an
atom? (hint: you can’t have part of a neutron)
Atomic Mass = The
number of protons +
number of neutrons
inside the nucleus
Are Units Important?
So what units should we use when describing the
mass of an proton, or neutron or electron?
How far is it from Charlotte to San Diego?
How far is it from Charlotte to San Diego?
3,835,000,000 mm
OR
150,990,000 inches
OR
2,385.3 miles
So what units should we use when describing the
mass of an proton, or neutron or electron?
1 proton = 3.687502724 x 10-27 lb
=.000000000000000000000000003687502724 lb
1 electron = 2.006647510 × 10−30 lb
.000000000000000000000000000002006647510 lb
Atomic Mass Units…just for atoms!
Protons = 1 amu
Neutrons = 1 amu
Electron mass insignificant …0. (their charge and
configuration are VERY IMPORTANT, not their mass)
In your notebook, on the paper under the
note sheet on page 6
To find the number of neutrons:
1.Round the Atomic Mass to a whole number
2.Atomic Mass – Atomic Number=NEUTRONS
P+N
Nucleus
---
P
protons
= N
= neutrons
KING KONG
CHEMISTRY
Atomic Number =
Protons =
Electrons
Mass Atomic Number =
Neutrons
Quick Quiz!!!
The periodic
table has all
the answers
P5
Using your notes
and the periodic
table at your seat,
complete the
following
worksheet
P5
What if the model doesn’t look like you expect
What if the model doesn’t look like you expect?
What if the model doesn’t look like you expect?