Which of the following is NOT a correct description of the periodic table? A. The periodic table was first proposed by Johann Dobereiner in 1817, ...
Which of the following is NOT a correct description of the periodic table?
A. The periodic table was first proposed by Johann Dobereiner in 1817, who grouped elements into triads based on their similar chemical properties.
B. The periodic table was later improved by John Newlands in 1864, who arranged elements in groups of seven based on their increasing atomic weights.
C. The modern periodic table was designed by Werner, a German chemist, based on Moseley's modern periodic law and the electronic configuration of elements.
D. The modern periodic table is divided into four blocks (s, p, d, f) based on the sublevel in which their electronic configuration ends.
A
B
C
D
A. The periodic table was first proposed by Johann Dobereiner in 1817, who grouped elements into triads based on their similar chemical properties.
B. The periodic table was later improved by John Newlands in 1864, who arranged elements in groups of seven based on their increasing atomic weights.
C. The modern periodic table was designed by Werner, a German chemist, based on Moseley's modern periodic law and the electronic configuration of elements.
D. The modern periodic table is divided into four blocks (s, p, d, f) based on the sublevel in which their electronic configuration ends.
A
B
C
D
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Ed 
A resposta correta é a alternativa B. A tabela periódica não foi aprimorada por John Newlands em 1864, que organizou os elementos em grupos de sete com base em seus pesos atômicos crescentes.
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