Phases of Matter
Solid, liquid and gas.
What are the three phases of matter?
The basic building blocks of ordinary matter
What is an atom?
Arranges all of the known element sin order of increasing atomic number
What is the The Periodic Table of Elements?
Cannot be broken down into any other substance, represented on the periodic table by a symbol.
What is an element?
Located on the left side, tend to be ductile, have luster an dare malleable.
What are metals?
Have a definite volume, but no definite shape.
What are liquids?
protons, neutrons, elections
What are subatomic particles?
The Periodic Table is classified into three sperate areas
What are metals, metalloids, and nonmetals?
The Russian chemist and inventor who formulated The Periodic Table, and arranged elements by atomic weight and similar properties.
Who is Dmitri Mendeleeve?
Helium, Carbon, Chlorine, and Oxygen
What are nonmetals?
All matter is made of tiny particles which are in constant motion.
What is the Kinetic Theory of Matter?
Center containing protons and neutrons
What is a nucleus?
numbered 1-7, Have the same number of energy levels or shells and chemical properties are NOT all similar
What are the periods or rows?
When two or more elements have chemically combined throught a chemical reaction to form a new substance. Example: NaCl
What is a compound?
Appearance, texture, color, odor, density, luster, conductivity, malleability, and ductility.
What are physical properties?
Adding or removing thermal energy causes
What is change in phases?
Determines the element's identity
What is a proton?
Having the outer energy level (shell) filled with electrons, these atoms do not want to bond with other atoms
What are noble gasses (or stable)?
Any two or more atoms bonded together, example: water or carbon dioxide.
What is a molecule?
Conduct heat and electricity better than nonmetals but not as well as metals
What are metalloids?
How tightly packed molecules are
What is density?
1/1200 amu and needed for bonds
What are electrons?
Valence electrons are key to the process, the ability of atoms to bond or separate with other atoms to create new substances.
What are chemical reactions?
Frozen vegetables, Halloween candy, or trail mix.
What is a mixture?
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