Chemistry
Period 4 Atomic Model
Direct TEKS: Chem.6(B) · IPC.7(A)
Supplemental TEKS: Chem.6(E) · 7.1(G) · 8.1(G)
Helps students investigate more complex electron arrangements and understand how atomic structure changes across Period 4 elements.
Curriculum connections
Direct connections address a component of a standard, not the entire expectation. Supplemental connections support instruction or extend a lesson. Summaries are paraphrased from current official TEA standards.
Middle school
7th Grade Science
Develop and use models representing phenomena, systems, processes or engineering solutions.
Develop and use an atomic model as enrichment; subatomic-particle arithmetic is not a direct grade-level content requirement.
8th Grade Science
Develop and use models representing phenomena, systems, processes or engineering solutions.
Develop and use an atomic model as enrichment; subatomic-particle arithmetic is not a direct grade-level content requirement.
High school
Chemistry
Describe atoms and ions, including subatomic particle masses, charges and locations.
Use particle models or counts alongside discussion of masses, charges and locations. Contrast fixed shells with the modern electron cloud.
Model representative-element electron arrangements using electron configurations and Lewis dot structures.
Practice representative-element arrangements alongside electron configurations and Lewis dots. Orbital notation and filling rules are supporting methods; transition elements are extensions, not AP-specific TEKS.
Integrated Physics & Chemistry
Model basic atomic structure and relate it to bonding, reactivity and periodic-table placement.
Model the atomic-structure component; bonding and reactivity need additional instruction.