mendeleev's periodic law

Question

Mendeleev's periodic law states that properties of elements are periodic functions of their:

RankGuru · Accepted Answer

Dmitri Mendeleev formulated the **First Periodic Law** stating that the chemical and physical properties of elements are a periodic function of their **Atomic Masses**.
- He arranged elements in order of increasing atomic mass while keeping elements with similar properties in the same vertical column (group).
- The **Modern Periodic Law** (proposed by Henry Moseley) later corrected this, stating that properties are periodic functions of **Atomic Number** ($Z$).

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mendeleev's periodic law

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