______________ arranged the periodic table of elements in order of increasing atomic mass.

Henry Moseley determined the atomic number for each element and arranged them in order of ________________.

An arrangement of elements in columns, based on a set of properties that repeat from row to row.

Periods...

Groups

Which is NOT one of the 3 classifications of elements?

Which side of the periodic table are metals located?

Which side of the periodic table are non metals located on?

Where are metalloids located on the periodic table?

Which is NOT one of the 4 main components of an element on the periodic table?

True or False: The second and third letter of a chemical symbol is always lower case.

What is the chemical symbol of Hydrogen (#1)

What is the chemical symbol of sodium (#11)

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