Lesson: Element Comparison
Author: Gina Tesoriero
Subject Area: Science
Grade Level: 7 - 8
Students will research two elements and collect the data needed to compare two elements by using three different internet sources to verify the accuracy of information.
Students will be able to collect information needed to compare two elements. They will assess the accuracy of information by comparing facts with three different sources.
Visit the following websites to compile information needed to compare two elements from the "rareness" list. Use multiple sources to verify facts.
Directions: To download documents for this project please visit the MS104Science webpage
Symbol a 1- or 2-letter internationally agreed code for a chemical element, usually derived from the name of the element
Atomic Number The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table
Protons a positively charge particle that resides within the atomic nucleus. The number of protons in the atomic nucleus is what determines the atomic number of an element
Neutrons a subatomic particle contained in the atomic nucleus. It has no net electric charge
Electron A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity
Atomic Mass The mass of an atom expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom
Melting point The temperature at which a given solid will melt
Boiling Point The temperature at which a liquid boils and turns to vapor. The boiling point for fresh water at sea level is 212?F (100?C).
Normal Phase Phase the element is most often found or the phase at room temperature
Classification Qualities shared with a metal, non- metal or metalloid
Chemical Family refers to a group of elements with similar chemical properties
Origin The beginning of something's existence
Discovery The action or process of discovering or being discovered
Common compounds a substance formed by chemical union of two or more elements