What he did with the periodic table-
As he attempted to classify the elements according to their chemical properties, he noticed patterns that led him to postulate his Periodic Table.
Two other achievements-
1. He is a science master.
2. He worked on the theory and practice of protectionist trade and on agriculture.
Mendeleev- created the first periodic table using atomic mass and characteristics to sort the elements
Periodic table- table that uses atomic number to organize the elements
Nuclues- The center core of an atom protons and usually neutrons
Proton- A small, positively charged particle in the nucleus of the atom.
Neutron- A small particle in the nucleus of the atom, with no electrical charge.
Electron- A tiny negatively charged particle that moves around the nucleus of an atom.
Atomic Number- how many protons an element has
Atomic Mass- average mass of an element
Symbol- 1 or 2 letters that represent an element
Periods- horizontal rows
Families/groups- vertical columns
Valence electrons- outer orbit electrons
Orbits
Know how many electrons are in the first three orbits- 2, 8,8
Metals
Shiny
Hard
Conducts electricity
Magnetic
Malleable
Ducktile
Alloys- A mixture of two or more metals.
Nonmetals- The elements that lack most of the properties of metals.
Metalloids- a element that can conduct electricity under some conditions.
Telll how many valence electrons are in each family and what group number each family is in. Alkali Metals- one valence electron and is located in group 1
Alkaline earth metals- two valence electrons and located in group 2
Transition elements- one or two valance electrons and located in group 3-12
Lanthanides and Actinides- bottom elements
Carbon Family- four valance electrons and located in group 14
Nitrogen Gamily- five valance electrons and located in group 15
Oxygen Family- six valence electrons and located in group 16
Halogen Family- seven valance electrons and group 17
Name the different families and tell about each one
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This is our Periodic Table and Elements unit!!!
Famous people
Dmitri MendeleevBorn- Feb. 8, 1834
Died- 1907
What he did with the periodic table-
As he attempted to classify the elements according to their chemical properties, he noticed patterns that led him to postulate his Periodic Table.
Two other achievements-
1. He is a science master.
2. He worked on the theory and practice of protectionist trade and on agriculture.
Mendeleev- created the first periodic table using atomic mass and characteristics to sort the elements
Periodic table- table that uses atomic number to organize the elements
Nuclues- The center core of an atom protons and usually neutrons
Proton- A small, positively charged particle in the nucleus of the atom.
Neutron- A small particle in the nucleus of the atom, with no electrical charge.
Electron- A tiny negatively charged particle that moves around the nucleus of an atom.
Atomic Number- how many protons an element has
Atomic Mass- average mass of an element
Symbol- 1 or 2 letters that represent an element
Periods- horizontal rows
Families/groups- vertical columns
Valence electrons- outer orbit electrons
Orbits
Know how many electrons are in the first three orbits- 2, 8,8
Metals
Alloys- A mixture of two or more metals.
Nonmetals- The elements that lack most of the properties of metals.
Metalloids- a element that can conduct electricity under some conditions.
Telll how many valence electrons are in each family and what group number each family is in.
Alkali Metals- one valence electron and is located in group 1
Alkaline earth metals- two valence electrons and located in group 2
Transition elements- one or two valance electrons and located in group 3-12
Lanthanides and Actinides- bottom elements
Carbon Family- four valance electrons and located in group 14
Nitrogen Gamily- five valance electrons and located in group 15
Oxygen Family- six valence electrons and located in group 16
Halogen Family- seven valance electrons and group 17
Name the different families and tell about each one