Lesson 076
Learning Goal: You should be able to
Describe the structures and functions of three sub
atomic particles
Calculate number of sub atomic particles from their
relationships
Success criteria: Can you …
Identify each of the three sub atomic particles?
Describe various characteristics of each one?
Complete calculations of the 3 sub atomic particles
and related characteristics (for an element based on
information provided)
Vocabulary
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Atom
Atomic number
Atomic mass
Element
Proton
Neutron
Electron
Electron orbit or shell
Nucleus
Isotope
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Valence electron
Period
Group or Family
Molecule
Compound
Write To Think 076
• Find and re-read your SCIENCE smart goal
you set few weeks ago (lesson 48 or 49 … at
the beginning of the second quarter)
1. Are you on track to achieving it?
2. What will you do in the next three weeks
(Friday December 18th) to achieve your
science goal?
3. What are the two major parts of an atom?
4. What is the nucleus of the atom made up of?
5. Why is an atom electrically neutral?
Study Guide
• Read it for homework!
• Note cards for vocabulary and/or facts?
• Add to your Graphic organizer?
What you’ll learn … when!
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Monday 30th Nov
Tuesday 1st Dec
Wednesday 2nd Dec
Thursday 3rd Dec
Friday 4th Dec
Atomic structure Theory and Model information
Atomic structure Theory and Model practice
Bohr diagrams
Model an atom. What if … ? Scenarios. More practice. Review.
Assessment on Atomic structure and chemical reactions
Monday 7th Dec
Periodic table: Color code for patterns. Metal/Non-metal etc. Families/Groups
Tuesday 8th Dec
Families/Groups: Characteristics
(Why? Reactivity, Bohr/Valence electrons)
Wednesday 9th Dec
Families/Groups: Why? Reactivity, Bohr/Valence electrons
Thursday 10th Dec
Review. Practice. Other.
Friday 11th Dec
Integrating data and text assessment. (CER and HOUSE)
Monday 14th Dec
Tuesday 15th Dec
Wednesday 16th Dec
Thursday 17th Dec
Friday 18th Dec
Alien periodic table part 1 assessment
Alien periodic table part 2 assessment
Alien periodic table part 3 assessment
Chemistry concept map/ reflection/ completion
Awards etc.
Purpose, agenda and instructions
You Will Be Able To:
Describe the structures and functions of three sub atomic particles.
Calculate number of sub atomic particles from their relationships
1. Self check 1 … on
BLUE
YOUR COPY
– Check your answers on front bench
2. Self check 2 … on
WHITE
CLASS SET …
answer on
lined paper
– Check your answers on front bench
3. Element calculations … on
WHITE YOUR COPY
– Check your answers on front bench
Sources/Resources
1. Your graphic organizer from yesterday
2. Information sheet under white tray … BOTH
sides!
3. Planner periodic table page 125
4. Partner
5. Teacher
Helpful information …
1. Atoms are neutral, with balanced charges
2. Atoms have equal numbers of protons (+) and
electrons (-)
3. Atomic number = number of protons (p)
4. The id or type of atom is its atomic number
5. Atomic mass or mass number = number of
protons + number of neutrons (Why?)
6. Atomic mass (n & p) - Atomic number (p) =
number of neutrons (n)
7. Electron shells ALWAYS fill up from the inside to
the outside shells. (2, 8, 8 or 18 etc.)
Definitions/Characteristics/Properties etc.
of sub atomic particles
1.
Atom: Smallest possible unit into which matter can be divided, while still maintaining its
properties. Made of protons ,electrons and neutrons. Atoms are always NEUTRAL!
2. Nucleus: Small, dense center of the atom. Contains protons and neutrons.
3. Protons: Carry a positive charge. Determines the properties/identity of the atom.
4. Electrons: Carry a negative charge. Gives atoms their ‘surface’ or ‘edge’. React or not react
with other atoms.
5. Electron orbits or shells or clouds: The area around the nucleus that contains the
electrons.
6. Number of electrons = number of protons because an atom is always neutral!
7. Neutrons: Carry a neutral charge. Make atoms stable (or not).
8. Atomic number: The number of protons in the nucleus of the atom, which determines its
chemical properties and its position in periodic table. Examples: Oxygen has 8 protons,
atomic # 8. Gold has 79 protons, atomic # 79.
9. Mass number: The number of protons AND neutrons in the nucleus of the atom.
Determine the mass of the atom. Examples: Carbon has 6 protons and can have 6
neutrons, mass number # 12. Chlorine has 17 protons, and can have 19 neutrons, mass
number # 36.
10. Isotopes: Two or more forms of the same element that has equal number of protons but
different number of neutrons and differ in relative atomic mass and have same chemical
properties
Purpose, agenda and instructions
You Will Be Able To:
Describe the structures and functions of three sub atomic particles.
Calculate number of sub atomic particles from their relationships
1. Self check 1 … on
BLUE
YOUR COPY
– Check your answers on front bench
2. Self check 2 … on
WHITE
CLASS SET …
answer on
lined paper
– Check your answers on front bench
3. Element calculations … on
WHITE YOUR COPY
– Check your answers on front bench
Summarizer
1. How are atoms neutral?
2. What is the atomic number of any atom?
3. If the number of protons changes then the
atom will be a different one. Why?