Compounds, Molecules, Elements, and Atoms
What are the three sub atomic particles in an atom?
Proton, Neutron, and Electron
Describe the particles in a solid
Compact, vibrate, make patterns
Liquid ----> Solid
Freezing
Basic Building Blocks of Matter
Atom
What is the density formula?
D=m/v
Where are the three subatomic particles located and what are their electrical charges?
Proton- Positive and Nucleus
Electron- Negative and Outer Shell
Neutron- Neutral and Nucleus
Describe the particles in a gas
Very spread out, move the fastest, not attracted to each other, move in all directions, move long distances
Solid --> Liquid
Melting
What kind of mixture would we call a solution?
Homogeneous
Haley has an apple. The apple has a volume of 300mL and a mass of 600g. What is the density of the apple?
2g/mL
What are the three characteristics of a compound?
2 or more atoms
Different Elements
Chemically Combined
Slightly spread out, move slower than gas particles, move shorter distances than gas particles, are attracted to each other
Gas ---> Liquid
Condensation
What kind of mixture would we call a suspension?
Heterogeneous
What is the name of the place we can find all of the elements in the world?
Periodic Table
What are the two characteristics of an element?
All atoms are the same
Can be any number of atoms.
Evaporation and Boiling turn a ______ into a _______. What is the difference between them?
Liquid, Gas
Evaporation is slow and Boiling is fast.
Solid ----> Gas
Sublimation
What are characteristics of a heterogeneous mixture?
Non-uniform, Particles are visible, suspension, Does not mix well, not evenly spread throughout
What happens to particles when the temperature rises?
Spread out, speed up
What are the three characteristics of a molecule?
2 or more atoms
Chemically combined
Atoms can be the same or different atoms.
Describe all three states of matter by their volume and shapes. (Definite or Not Definite)
Solid- Definite shape, Definite Volume
Liquid- Definite volume, not definite shape
Gas- No definite volume or shape.
Gas ---> Solid
Deposition
What are characteristics of a homogeneous mixture?
Uniform, Solution, Spread evenly throughout, mixes well, particles are not visible.
How many elements are in the periodic table?
118