Emily's PageE

Chapter 11

Define temperature and heat
Describe the behavior of atoms and molecules as matter undergoes phase changes
Chapter 13:

Identify and describe particles which comprise atoms.
Compare and contrast forces inside atoms (they may use a graphic organizer to complete this – Venn Diagram)
Explain the Bohr atom model
Answer: Temperature is the the result of what position the Earth is tilted to the sun, heat is is the result of the temperature rising.When they are a solid they are tightly packed. When they are a liquid they are close but not packed,
When they are a gas they are flying around each other.
There are Neutrons, Protons, Electrons, and there is a nucleus. Neutrons give off negative charges while protons and electrons both give off positive charges.
His idea of an atom is that they have energy levels. The energy levels are like steps on a staircase; You can be on one step or another but you cannot be in between steps except when between passing.

Differentiate physical and chemical properties of elements
Explain how the periodic table is organized
Identify metals, semi-metals, and nonmetals on the periodic table
Differentiate the electrical and thermal conductivity of metals and nonmetals
Define periodicity and discuss examples
Predict properties of an element based on its position on the periodic table
Physical Properties are taste, color, texture, and color. Chemical Properties are things that were created, and where not there when you started.
By Columns And Rows. In the rows the Atomic number goes up by 1. Rows are periods and Columns are groups.
Groups are diagonal
while Rows go horizontal. They are organized as nonmetals,metals and metalloids.
Metals conduct electricity. Semi-metals can either conduct or not conduct electricity very well. Non-metals are very poor conductors. Copper is a metal an Neon is a non-metal.
Metals are good conductors of electricity and of heat. Nonmetals are very poor conductors of heat and electricity compared to metals.
Periodicity- the repeating pattern of chemical and physical properties of the element.
Examples: the melting and boiling point.
Metals on the far right are good conductors of electricity while the ones on the left side are poor conductors so they must be gases.The higher the element is on the periodic table the smaller the atomic number is or the higher the atomic mass, so the lower the element is on the table the bigger the atomic number or mass.