Study Guide – Classifying Matter – Periods 2 and 5

Key Concepts:

  1. Atomic Number = number of ______or ______
  1. Atomic Mass – Atomic Number = number of ______
  1. What two parts are in the nucleus of the atom? What charge do they have?
  1. What part is in clouds around the nucleus?
  1. What is a pure substance?
  1. What two items are classified under pure substances?
  1. What is a mixture?
  1. What two types of mixtures are there?
  1. What type of mixture would a solution be? Suspension? Explain why they are classified under these two categories?
  1. What is the definition of an element?
  1. What is the definition of a compound?
  1. For each picture below, classify it as Element, Compounds, Homogeneous Mixture, Heterogeneous Mixture.

  1. What 3 major groups are found on the periodic table?
  1. Complete the chart below with information about these 3 groups:

Group / # of elements / Physical Property / Chemical Property / State(s) of Matter
Metals
Semi-Metals
Nonmetals
  1. What does the staircase line indicate on the periodic table?
  1. Name the semi-metals that are currently named (don’t include newer elements that have not been made)
  1. Why is Hydrogen not on the same side as other nonmetals?
  1. What is a period on the periodic table?
  1. How many periods are there?
  1. What is a group on the periodic table?
  1. How many groups are there?
  1. What do elements in the same period share?
  1. What do elements in the same group share?
  1. Complete the chart below with information about the elements classes:

Element Class / Group Number / Physical Properties / Chemical Properties
Alkali Metal
Alkaline Earth Metals
Transition Metals
Lanthanides and Actinides
Halogens
Noble (Inert) Gases
  1. What are the definitions of the following properties:

Malleability: ______

Ductility: ______

Electrical Conductivity: ______

Thermal Conductivity: ______

  1. How does the way metals bond allow them to be more malleable, ductile, and conductive?
  1. What are the two types of bonds that nonmetals have when they bond with other elements?
  1. Which type of bond tends to be weaker since they are just sharing electrons?
  1. Which type of bonds is stronger due to the crystal lattice it forms and involves electrons being transferred?
  1. Why are nonmetals brittle and poor conductors of heat and electricity? (Explain using bonds they form)
  1. What are valence electrons?
  1. How do valence electrons affect an atom’s reactivity?
  1. Complete the chart below with valence electrons and reactivity:

Group – Family Name / # of Valence Electrons / Reactivity Level
#1 – Alkali Metals
#2 – Alkaline Earth Metals
#3 – 12 Transition Metals
#13 Boron Family
#14 Carbon Family
#15 Nitrogen Family
#16 Oxygen Family
#17 Halogens
#18 Inert Gases/Noble Gases

Skills Using the Periodic Table: You will use a black and white periodic table to identify element families, metals, semi-metals, or nonmetals, Period #, Group #, Atomic Number, Atomic Weight(Mass), # of protons, electrons, neutrons