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7.1 Vocabulary

Vocabulary from science book chapter 7.1

Physical properties characteristics of matter that can be seen through direct observation such as density, melting point and boiling point.
chemical properties characteristics of matter that can only be observed when one substance changes into a different substance, such as iron into rust
periodic table a chart that organizes the element by increasing there chemical properties and increasing atomic number
period a row of the periodic table
group a column of the periodic table
metal elements that are typically shiny and good conductors of heat and electricity
non metal elements that are poor conductors of heat and electricity
atomic mass unit a unit of mass equal to 1.66 x 10 to the negative 24 grams which is one twelfth the mass of the isotope carbon-12
atomic mass the average mass of all the known isotopes of and element, expressed in amu
alkali metals elements in the first group of the periodic table
halogens elements in the group containing fluorine, chlorine, and bromine, among others
noble gases elements in the group containing helium, neon, and argon, among others.
Created by: msorger