Science, asked by pala5529, 9 months ago

State Modern Periodic Law. Name the two elements of first period.

Answers

Answered by promilarakesh1982

Answer:

Explanation:

According to modern periodic law : The properties of elements are a periodic function of their atomic numbers. The two elements of first period are Hydrogen (H) and Helium (He).

Answered by rishichand2005

Answer:

Modern periodic law states that the physical and chemical properties of elements are the periodic functions of their atomic number.

Hydrogen and helium

Explanation:

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