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the student will be able to compare metals, nonmetals, and metalloids using physical properties such as luster, conductivity, or malleability;
identify that organic compounds contain carbon and other elements such as hydrogen, oxygen, phosphorus, nitrogen, or sulfur;
: distinguish between physical and chemical changes in matter in the digestive system;
describe the structure of atoms, including the masses, electrical charges, and locations, of protons and neutrons in the nucleus and electrons in the electron cloud;
: identify that protons determine an element's identity and valence electrons determine its chemical properties, including reactivity;
: interpret the arrangement of the Periodic Table, including groups and periods, to explain how properties are used to classify elements;
: recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts;
: investigate how evidence of chemical reactions indicate that new substances with different properties are formed; and
: recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass.