ICP.6.3 Cite the evidence that Pure substances material that is composed of only one Systems and – supports the idea that some type of particle system models pure substances are combined of elements in a definite ratio, Structure and as for example seen in function electrolysis of water. ICP.6.4 Given the periodic Periodic table table of the chemical elements arranged in Systems and – table, determine the atomic order of atomic number, usually in rows, so that elements system models mass, atomic number, and with similar atomic structure (and hence similar chemical charges for any element. properties) appear in vertical columns Structure and Atomic mass mass of an atom of a chemical element function – expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes Atomic number number of protons in the nucleus of an – atom, which determines the chemical properties of an element and its place in the periodic table Charges an excess or deficiency of electrons in a body – ICP.6.5 a periodic table, ratios ratio of moles of one substance to the moles Patterns – understand and describe the of another substance in a balanced chemical equation significance of column location Scale, for the elements by calculation proportion, and of molar ratios of known quantity compounds. ICP.6.6 Develop graphical and Density quantity of mass per unit volume Scale, – mathematical representations proportion, and that describe the relationship quantity between volume and mass of an object, describe the slope in Structure and terms of the object’s density, function and apply those representations to qualitatively and quantitatively determine the mass or volume of any object.
ICP.6.3 Cite the evidence that supports the idea that some pure substances are combined of elements in a definite ratio, as for example seen in electrolysis of water. Pure substances – material that is composed of only one type of particle Systems and system models Structure and function ICP.6.4 Given the periodic table, determine the atomic mass, atomic number, and charges for any element. Periodic table – table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns Atomic mass – mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes Atomic number – number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table Charges – an excess or deficiency of electrons in a body Systems and system models Structure and function ICP.6.5 a periodic table, understand and describe the significance of column location for the elements by calculation of molar ratios of known compounds. ratios – ratio of moles of one substance to the moles of another substance in a balanced chemical equation Patterns Scale, proportion, and quantity ICP.6.6 Develop graphical and mathematical representations that describe the relationship between volume and mass of an object, describe the slope in terms of the object’s density, and apply those representations to qualitatively and quantitatively determine the mass or volume of any object. Density – quantity of mass per unit volume Scale, proportion, and quantity Structure and function
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