Reviewing sc.8.P.8.5
Atomic Structure
Knowing Atomic Structure Name the 3 particles that make up an atom. What are the charges of each particle? Where would you find each particle?
What is the periodic table? A chart of the elements arranged into rows and columns according to their physical and chemical properties. It can be used to determine the relationships among the elements.
Reading the Periodic Table Periods – go across Groups – go down
How do you read the periodic table? Mass Mas
What is the atomic number? The number of protons found in the nucleus of an atom Or The number of electrons surrounding the nucleus of an atom.
What is the chemical symbol? An abbreviation of the element name.
What is the atomic mass? The number of protons and neutrons in the nucleus of an atom.
What is the atomic number? What is the atomic mass? How many protons? How many electrons? How many neutrons?
What is the atomic number? What is the atomic mass? How many protons? How many electrons? How many neutrons?
Metals, Nonmetals, & Metalloids Which ones are the metals? Which ones are the nonmetals? Which ones are the metalloids?
What do we know about elements in the same group?
How can you determine the number of valence electrons? Valence electrons are the number of electrons in the outer energy level. The last # of the group # = valence electrons
Find the number of valence electrons for the following:
Groups to Remember Group 1 = Alkali Metals Group 2 = Alkaline Earth Metals Group 17 = Halogens Group 18 = Noble Gases
Elements, Compounds, & Mixtures
Homogeneous vs. Heterogeneous Mixtures Homogeneous is the same throughout. Heterogeneous is not the same throughout.
Is it an element, compound, or mixture?
Acids & Bases
Learning Scale Level 4 – Investigate and describe the compounds formed by bonding elements. Level 3 – Describe how elements combine to form compounds. Describe the motion of the particles in a solid, liquid, and gas. Level 2 – Use the periodic table to identify the number of protons, neutrons, or electrons in an element. Level 1 – Locate and identify elements on the periodic table.