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Historical Development of the Periodic Table Quiz

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Who is credited with the discovery of the periodic law?

Dmitri Mendeleev

Explanation

Mendeleev discovered the periodic law organizing elements by atomic mass.

Which of the following elements was not known at the time of Mendeleev's periodic table?

Neon

Explanation

Neon was not known at Mendeleev's time due to its inertness.

Which scientist discovered the first periodic relationship among the elements?

Johann Dobereiner

Explanation

Dobereiner discovered triads, early periodic relationships.

What term is used to describe the vertical columns in the periodic table?

Groups

Explanation

Vertical columns are called groups, sharing similar properties.

Who is known for arranging the elements in order of increasing atomic number?

Henry Moseley

Explanation

Moseley ordered elements by atomic number.

Which of the following elements has the highest electronegativity?

Fluorine

Explanation

Fluorine possesses the highest electronegativity.

What was the main criterion Mendeleev used to organize elements in his periodic table?

Atomic mass

Explanation

Mendeleev used atomic mass as the primary organizing principle.

Who proposed the concept of periodicity of elements based on the atomic number?

Henry Moseley

Explanation

Moseley proposed organizing elements by atomic number, not mass.

Who was the first to propose a periodic classification of elements?

Johann Wolfgang Döbereiner

Explanation

Döbereiner proposed early triadic classifications.

#10

What is the most electronegative element on the periodic table?

Fluorine

Explanation

Fluorine is the most electronegative element.

#11

Which group of elements in the periodic table is known for their high reactivity?

Alkali metals

Explanation

Alkali metals are highly reactive.

#12

Who proposed the concept of the 'law of octaves'?

John Newlands

Explanation

Newlands proposed the law of octaves.

#13

Which group of elements in the periodic table is known as the 'noble gases'?

Group 18

Explanation

Group 18 elements are noble gases due to their stability.

#14

Which element is placed directly below magnesium in group 2 of the periodic table?

Calcium

Explanation

Calcium is below magnesium in Group 2.

#15

Which of the following is a synthetic element created by human intervention?

Technetium

Explanation

Technetium is a synthetic element.

#16

What element did Dmitri Mendeleev predict with remarkable accuracy before its discovery?

Germanium

Explanation

Mendeleev predicted Germanium accurately.

#17

Which element has the lowest boiling point?

Helium

Explanation

Helium has the lowest boiling point.

Historical Development of the Periodic Table Quiz

Who is credited with the discovery of the periodic law?

Which of the following elements was not known at the time of Mendeleev's periodic table?

Which scientist discovered the first periodic relationship among the elements?

What term is used to describe the vertical columns in the periodic table?

Who is known for arranging the elements in order of increasing atomic number?

Which of the following elements has the highest electronegativity?

What was the main criterion Mendeleev used to organize elements in his periodic table?

Who proposed the concept of periodicity of elements based on the atomic number?

Who was the first to propose a periodic classification of elements?

What is the most electronegative element on the periodic table?

Which group of elements in the periodic table is known for their high reactivity?

Who proposed the concept of the 'law of octaves'?

Which group of elements in the periodic table is known as the 'noble gases'?

Which element is placed directly below magnesium in group 2 of the periodic table?

Which of the following is a synthetic element created by human intervention?

What element did Dmitri Mendeleev predict with remarkable accuracy before its discovery?

Which element has the lowest boiling point?

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