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In modern periodic table, elements are arranged in which order?

Answer and explanation

Correct answer: In increasing order of atomic number

In the modern periodic table, elements are placed in increasing order of atomic number. Atomic number is the number of protons in an atom’s nucleus, and the modern periodic law is based on it. Arrangement by atomic mass caused some anomalies, so option B is not correct. Exam tip: remember that the modern periodic law is based on atomic number, not atomic mass.

Related tags

Modern Periodic TableAtomic NumberPeriodic ClassificationModern Periodic LawClass 10 ScienceModern Periodic Table And Periodic LawPeriodic Classification Of ElementsScience

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