| Atoms Basics | Atoms Advanced | States of Matter Basics | States of Matter Advanced | Periodic Table |
| 100 | 100 | 100 | 100 | 100 |
| 200 | 200 | 200 | 200 | 200 |
| 300 | 300 | 300 | 300 | 300 |
| 400 | 400 | 400 | 400 | 400 |
| 500 | 500 | 500 | 500 | 500 |
| Final Question | ||||
What kinds of particles make up an atom?
- protons, neutrons, and electrons
- elements, compounds, and molecules
- protons, nuclei, and electrons
What kinds of particles make up an atom?
- protons, neutrons, and electrons
- elements, compounds, and molecules
- protons, nuclei, and electrons
a. protons, neutrons, and electrons
Which part of an atom has the least mass?
- a proton
- an electron
- a neutron
- the nucleus
Which part of an atom has the least mass?
- a proton
- an electron
- a neutron
- the nucleus
B. an electron
What are the main particles in the nuclus of an atom?
What are the main particles in the nuclus of an atom?
Protons and Neutrons
The electron cloud surrounding the nucleus of an atom...
- contains most of the mass of the atom
- is enclosed by a solid shell
- is mostly empty space
The electron cloud surrounding the nucleus of an atom...
- contains most of the mass of the atom
- is enclosed by a solid shell
- is mostly empty space
C. is mostly empty space
What are the charges of the particles in an atom?
What are the charges of the particles in an atom?
Protons = positive
Electrons = negative
Neutrons = neutral (no charge)
How is the path of electron on your models different from an actual atom?
How is the path of electron on your models different from an actual atom?
Electrons travel in 3D paths in the electron clouds.
About how much mass is in the electron cloud?
About how much mass is in the electron cloud?
Less than 1%
The nucleus accounts for approximately what percentage of the total mass of an atom?
The nucleus accounts for approximately what percentage of the total mass of an atom?
99%
Which particles determine an atoms charge?
Which particles determine an atoms charge?
Protons and electrons
How fast do electrons move?
How fast do electrons move?
Near the speed of light
How do the molecules of a solid move?
How do the molecules of a solid move?
They vibrate back and forth in one place.
When energy is taken away, molecular motion...
- decrease
- increases
- stays the same
When energy is taken away, molecular motion...
- decrease
- increases
- stays the same
a. Decreases
Silver is a metal that can be melted to form jewelry. As the silver melts, what happens to the atoms that make up the solid?
- they move closer together
- they move faster
- they move in circles
Silver is a metal that can be melted to form jewelry. As the silver melts, what happens to the atoms that make up the solid?
- they move closer together
- they move faster
- they move in circles
B. They move faster
When a substance changes from a solid to liquid to gas, the molecular motion...
When a substance changes from a solid to liquid to gas, the molecular motion...
increases
What causes matter to change from one state to another?
What causes matter to change from one state to another?
Temperature (energy) Changes
Heat/Cooling
List the states of matter in DECREASING molecular motion
List the states of matter in DECREASING molecular motion
Gas, Liquid, Solid
What two states of matter do not change volume?
What two states of matter do not change volume?
Solid and liquid
What is the most common state of matter in the universe?
What is the most common state of matter in the universe?
Plasma
In which two phase changes involving water does the motion of water molecules INCREASE?
- the melting of ice and the condensation of water vapor
- the freezing of water and the evaporation of water
- the melting of ice and the evaporation of water
In which two phase changes involving water does the motion of water molecules INCREASE?
- the melting of ice and the condensation of water vapor
- the freezing of water and the evaporation of water
- the melting of ice and the evaporation of water
C. The melting of ice and evaportation of water
| X | Y | Z |
|
Particles move independently of each other |
Particles vibrate about a fixed point | Particles move past one another |
| X | Y | Z |
|
Particles move independently of each other |
Particles vibrate about a fixed point | Particles move past one another |
X = Gas
Y = Solid
Z = Liquid
What are the elements in:
CO2
What are the elements in:
CO2
Carbon and Oxygen
What are the elements in:
XeF4
What are the elements in:
XeF4
Xenon and Fluorine
What are the elements in:
CaCl2
What are the elements in:
CaCl2
Calcium and Chlorine
What are the elements in:
2AgNO3
What are the elements in:
2AgNO3
Silver, Nitrogen, and Oxygen
What are the elements in:
CuSO4
What are the elements in:
CuSO4
Copper, Sulfur, and Oxygen
What are the number of protons, electrons, and neutrons (PEN) in the element Iodine?
What are the number of protons, electrons, and neutrons (PEN) in the element Iodine?
P = 53
E = 53
N = 74
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