what is the name of scientist who discovered the arrangement of the periodic table?

The scientist most widely credited with discovering the systematic arrangement of the periodic table is Dmitri Mendeleev, a Russian chemist.

Who arranged the periodic table?

• Dmitri Mendeleev published his first periodic table in 1869, arranging elements mainly in order of increasing atomic weight and grouping them by repeating chemical properties.

• He left gaps for elements that had not yet been discovered and even predicted their properties, which was later confirmed by discoveries like gallium and scandium.

Was he the only one?

• Other scientists, such as John Newlands and Henry Moseley, also contributed: Newlands proposed an early “law of octaves,” and Moseley later showed that elements should be ordered by atomic number, not atomic weight.

• Despite these contributions, school and exam questions asking “who discovered the arrangement of the periodic table?” almost always expect the answer: Dmitri Mendeleev.

Meta description (SEO):
Learn who discovered the arrangement of the periodic table, why Dmitri Mendeleev is credited as its creator, and how other scientists refined the modern periodic table over time.

Information gathered from public forums or data available on the internet and portrayed here.