New York Standards
NY.C. PHYSICAL SETTING / CHEMISTRY
C.4. The Physical Setting: Students will understand and apply scientific concepts, principles, and theories pertaining to the physical setting and living environment and recognize the historical development of ideas in science.
C.4.3. Matter is made up of particles whose properties determine the observable characteristics of matter and its reactivity.
4.3.1. Explain the properties of materials in terms of the arrangement and properties of the atoms that compose them.
4.3.1.x. Interpret and write isotopic notation.
4.3.1.xi. Given an atomic mass, determine the most abundant isotope.
4.3.1.xii. Calculate the atomic mass of an element, given the masses and ratios of naturally occurring isotopes.