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Transcript
3-ELEMENTS AND THE ATOMIC MODEL.
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C4.8A Identify the location, relative mass, and charge for electrons, protons, and neutrons.
C4.8B Describe the atom as mostly empty space with an extremely small, dense nucleus consisting of the protons and neutrons and
an electron cloud surrounding the nucleus.
C4.8C Recognize that protons repel each other and that a strong force needs to be present to keep the nucleus intact.
C4.8i Describe the fact that the electron location cannot be exactly determined at any given time.
C4.10B Recognize that an element always contains the same number of protons.
C4.10e Write the symbol for an isotope, XZA, where Z is the atomic number, A is the mass number, and X is the symbol for
the element.
Students Must:
 Describe the atom as mostly empty space with an extremely small, dense nucleus
consisting of the protons and neutrons and an electron cloud surrounding the nucleus.
 Recognize that an element always contains the same number of protons.
 Describe the location, mass, and charge of protons, electrons, and neutrons
 Calculate the number of protons, electrons, and neutrons in neutral atoms
 Define and use atomic number, mass number, isotope, valence electrons, and ion
 Identify atoms based on descriptive information
 Draw pictures of atoms
 Describe the fact that the electron location cannot be exactly determined at any given
time.
 Use each of the two labeling methods for atoms shown in class
4-THE PERIODIC TABLE
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Identify properties of common families of elements.
Identify properties of common periods on the periodic table.
Explain the history and organization of the periodic table.
C4.8e Write the complete electron configuration of elements in the first three rows of the periodic table.
C4.8g Predict oxidation states and bonding capacity for main group elements using their electron structure.
C4.9A Identify elements with similar chemical and physical properties using the periodic table.
C4.9b Identify metals, non-metals, and metalloids using the periodic table.
C4.9c Predict general trends in atomic radius, reactivity
C4.10A List the number of protons, neutrons, and electrons for any given ion or isotope.
C4.8D Give the number of electrons and protons present if the fluoride ion has a -1 charge.
Students Must:
 Name the first two and last two families
 Identify elements as metals, non-metals
 Describe the properties of first 2 and last 6 families (non-transition metal families)
o Number of valence electrons
o Reactivity of Alkali, Alkaline earth, Oxygen family, and Halogens
o Luminescence of Noble Gases
o Most reactive metals and non-metals
 Describe periodic trends
o Atomic size (horizontally and vertically)
o Number of outer electrons
 Use the periodic table to obtain the information listed above as well as to find atomic
mass, atomic number, symbol, element name
 List the number of protons, neutrons, and electrons for any given ion or isotope.