Chemistry IS 3 (Atoms, Elements, and Molecules) (POGIL for coulombic…
Chemistry IS 3 (Atoms, Elements, and Molecules)
1. What are atoms, and how do they interact?
each atom has a charged substructure consisting of a nucleus, which is made of protons & neutrons, surrounded by electrons
the stability of matter is increased when the electric and magnetic field energy is minimized
a stable molecule has less energy, by an amount known as the binding energy, than the same set of atoms separated, and one must provide at least this energy in order to take the molecule apart
What are activities that go with this? How do you teach this without straight up telling/explaining this to students?
note- middle school NGSS doesn't teach protons, neutrons, and electrons
brief history of the structure of the atom?
if neutrons, change isotopes, radiactivity
DO RUTHERFORDS GOLD EXPERIMENT
SET UP CORNERS WITH WOODEN BLOCKS
the periodic table orders elements horizontally by the number of protons in the atom's nucleus and places those with similar chemical properties in columns
the repeating patterns of this table reflect patterns of outer electron states
The structure and interactions of matter at the bulk scale are determined by electrical forces within and between atoms
4. What models can we use to predict the outcomes of chemical reactions?
leads to atomic theory
investigate a variety of properties (ex. atomic radius, first ionization energy, and electron affinity)
What does "investigate" look like?
which atomsare most likely to reaction
ionization energy vs year found, natural state, what patterns do you recognize? draw a graph, make a sentence of your graph
period 3 oxides ph test, more intense as you go down, order beforehand, carbonate, chloric acid, nitrate, clo, sulfuric acid, get universal indicator, wear gloves
group 1 metals in water
metal vs nonmetal lab stations
look into pogil ofr teaching periodic trends
apply underlying models of atomic structure and interaction along with the principle of cause and effect
use these models to explain why properties of the elements repeat in a periodic fashion
use periodicity to predict bulk properties of elements, their reactivity, and types and numbers of bonds they will form with other elements
properties of a post it debate, smallest art of an element tht retains properties
2. Mendeleev's periodic table
arranged known elements so groups with similar properties fell into vertical columns in the table
build a mental model of how the periodic table was arranged by using a physical model.
arrange color chips from a paint store into a matrix based on color and hue
understand the power of models by predicting the existence of color/hue chips that were removed from the final matrix before the chips were distributed
when chemists organize elements in order of increasing relative atomic mass, they notice repeating, periodic patterns
collab hue slides, how to you make a table
what makes it a different row? need different dimensions
3. interpreting trends on the periodic table
relate overall order of the periodic table to the number of protons and electrons in the atom's outermost energy level
develop a simple model of interactions between atoms based on their electron configuration between atoms based on their electron configuartion
use periodic patterns of electron configuration in the periodic table to predict properties like the overall reactivity of metals and the number of bonds an atom can form (HS-PS1-1) and predict the outcome of simple chemical reactions (HS-PS1-2)
what's the best way to teach/explain octet rule?
how do you scaffold this?
Gorilla glass video
PHENOMENA- STATIC ELECTRICITY/LIGHTNING/FIREWORKS der graff generator
look up video for ideas
and phet simulation with balloons
balloon with hole punch, how can you get the most on the balloon
post it notes ripping up
attraction after atoms
keep initial model on a piece of paper that's colored, (periodic table- properties)
oxide lab- if you were to substiture something, would you use same column or same row, knowing keeping properties the same
pogil periodic trends
why do some things stick together while others
intro to atomic structure and