Chemistry ch 6

Who came up with the triad

Dobereiner
Who came up with the law of octaves

Newlands
What is the law of octaves

stated that properties repeat every 8th element
Who is the father of the periodic table

Mendeleev
mendeleev"s periodic law

properties of elements are a peridic function of their atomic masses
Who arranged the table by periodic numbers resulting in the modern periodic law?

Moseley
What group number is the noble gases?

18
What metals fill the middle of the table?

transition metals
What two groups did Seabory decide to pull out from the periodic table?

lanthanoids and actinoids
What is the arrangement of elements in the periodic table?

elements with the similar properties fall in the same column
What is the octect rule

8 electrons in the outer level render an atom unreactive and it its most stable configuration
a charged particle formed when an atom gains of losses one or more electrons

ion
cation

a positive ion
anion

a negativr ion
How many electrons are in the outter energy level of

1, 2, or 3 and they want to loose these

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Chemistry ch 6

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Chemistry Ch 6

Updated

2011-01-13T17:52:19Z

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