Cuestionario sobre la Tabla Periódica Moderna

Who classified some elements into groups of three called triads?

• Dmitri Mendeléyev

• Glenn T. Seaborg

• Henry Moseley

• Johann Dobereiner

What law did John Newlands propose in 1863?

• Law of Periods

• Law of Groups

• Law of Octaves

• Law of Triads

Which element did not fit into Newlands' law of octaves?

• Oxygen

• Calcium

• Iron

• Carbon

Who is known as the 'father of the modern periodic table'?

• Glenn T. Seaborg

• Lothar Meyer

• Henry Moseley

• Dmitri Mendeléyev

What did Mendeleev do to correct his periodic table?

• Adjusted the atomic numbers

• Predicted properties of unknown elements

• Published a book on chemistry

• Classified elements into groups

What discovery did Henry Moseley make in 1913?

• The existence of noble gases

• The classification of triads

• The nuclear charge of elements

• The law of octaves

What series of elements was moved to its current location by Glenn T. Seaborg?

• Actinide Series

• Transition Metals Series

• Noble Gases Series

• Halogens Series

What are the horizontal rows of the periodic table called?

• Series

• Periods

• Families

• Groups

What elements are considered transition metals?

• Alkali metals

• Alkaline earth metals

• Noble gases

• Transition metals

What pattern is observed in the modern periodic table?

• Triad pattern

• Random pattern

• Periodic pattern

• Octave pattern