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24 terms

Chemistry Ch 6-7

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d-block
contains the transition metals and is the largest of the blocks
f-block
contains the inner transition metals
ion
an atom or bonded group of atoms that have a + or - charge
ionized energy
required to move an electron from an atom
octet rule
states that atoms tend to gain, lose, or share electrons in order to acquire a full set of eight valence electrons
electro-negativity
indicates the relative ability of an atom to attract electrons in a chemical bond
flourine
most electronegative atom
francium
the least electronegative atom
metalloids
have both chemical and physical properties
group 17(7A)
halogens
group 18(8A)
noble gases
group 1(1A)
alkali metals
group 2(2A)
alkaline earth metals
group 3-12 (all the B groups)
transition elements
inner transition metals
the TWO sets at the BOTTOM of the PTable known as the LANTHANIDE series and the ACTINIDE series
Lavoisier
french - 1st 23 elements
Newlands
english - proposed an organization scheme called the LAW of OCTAVS
Mendeleev
composed the 1st PTable
Moseley
composed the modern day periodic table
periodic law
when the elements are arranged in order of increasing atomic number, there is a periodic pattern in their PHYSICAL & CHEMICAL properties
periods
horizontal rows
groups
vertical columns
valence electrons
groups 1(1A), 2(2A), 13-18(3A-8A)
actinides
radioactive elements