4th and 5th period in periodic table are known as...? Mcqs

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4th and 5th period in periodic table are known as...?

(A) Short period
(B) Long period

(C) Normal period
(D) Very long period

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Latest MCQs

Who created periodic table...?

(A) Faraday
(B) Lavoisier

(C) Arrhenius
(D) Mendeleev

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The property decides the order of elements in the modern periodic table is ____...?

(A) The number of neutrons in the nucleus
(B) The number of electrons in the outermost shell

(C) The number of protons (atomic number) in the nucleus
(D) The atomic mass of the element

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In the periodic table, rows is considered to be a ____...?

(A) Periods
(B) Groups

(C) Zigzag
(D) Diagonal

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