Which trio did Dobereiner first identify?

এই অধ্যায়ের আরও প্রশ্ন

• C-04-Q006Who proposed the Law of Octaves?
• C-04-Q007According to the Law of Octaves, properties recur with every—
• C-04-Q008Newlands arranged the elements according to—
• C-04-Q009In 1869, who published a periodic table grouping elements with similar properties?
• C-04-Q010Mendeleev's periodic law states that physical and chemical properties of elements recur periodically as—
• C-04-Q011How many elements did Mendeleev arrange in his table?
• C-04-Q012Mendeleev's table consisted of—
• C-04-Q013Mendeleev's correct forecast about the existence of new elements is shown by—
• C-04-Q014In Mendeleev's table, which element is placed before potassium despite higher atomic mass?
• C-04-Q015Why is Argon (mass 40) placed before Potassium (mass 39) in Mendeleev's table?