SC1.b Construct an argument to support the claim that the proton (and not the neutron or electron) defines the element's identity.

• I can explain what an element is. (Knowledge)

• I can define the atomic number and mass number and explain what it communicates about an element or isotope. (Knowledge)

• I can explain what an ion is. (Knowledge)

• I can determine the number of protons, neutrons, and electrons in a given atom, ion, or isotope. (Reasoning)

• I can explain how elements heavier than hydrogen are created. (Reasoning)

• I can use the periodic table to discover the atomic number of an element. (Skill)

• I can construct an argument to support the claim that the proton defines the element’s identity. (Product)

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SC1.d Construct an explanation that relates the relative abundance of isotopes of a particular element to the atomic mass of the element.

• I can define the atomic number and mass number and explain what it communicates about an element or isotope. (Knowledge)

• I can explain what an isotope is. (Knowledge)

Learning Targets:

• I can explain what an element, ion, and isotope are.

• I can use the periodic table to discover the atomic number of an element.

• I can explain what atomic number and mass number communicates about an element or isotope.

• I can determine the number of protons, neutrons, and electrons in a given atom, ion, or isotope.

• I can construct an argument to support the claim that the proton defines the element’s identity.