Chemistry Instructional Guide

Atoms and Elements

Chemistry

Quarter 1

HMHUnit 2

electronegativity. ● I am learning about explaining nuclear stability. ● I am learning about

that when fusion of elements results in a more stable nucleus, large quantities of energy are released, and when fusion results in a less stable nucleus, large quantities of energy are required. Examples could include the building up of elements in the universe starting with hydrogen to form heavier elements, the composition of stars, or supernovae producing heavy elements. (PS1.C, ESS1.A) CHEM.1.5 - Use the periodic table as amodel to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms. Emphasize conceptual understanding of trends and patterns. Examples could include trends in ionization energy, atomic radius, or electronegativity. Examples of properties for main group elements could include general reactivity, bonding type, or ion formation. (PS1.A)

investigating radioactive decay.

● I am learning about

analyzing nuclear fssion and fusion.

● I am learning about

exploring nuclear energy.

CONCEPTS (Nouns)

SKILLS (Verbs)

● Atomic structure ● Isotopic and nuclear stability ● Nuclear Half-life ● Patterns of the Periodic Table

● Carry Out an Investigation ● Construct explanations ● Predict properties ● Making models

VOCABULARY ● Element ● Atoms

● Atomic radius ● Ionization energy ● Electronegativity

● Nucleon ● Nuclide

● Electron ● Nucleus ● Proton ● Neutron ● Atomic number ● Isotope

● Nuclear radiation ● Radioactive decay ● Alpha decay ● Betadecay ● Gamma decay ● Half-life ● Nuclear fssion ● Nuclear fusion

● Atomic mass ● Mass number ● Valence electron

K-12 LEARNING PROGRESSIONS (via USBE Core Guides)

Standard 1.1