Question

1. who developed the periodic table?

a. niels bohr
b. anton van leuenhoek
c. dmitri mendeleev
d. bill gates

Explanation:

To determine who developed the periodic table, we analyze each option:

• Option a: Niels Bohr made contributions to atomic structure, not the periodic table.
• Option b: Anton van Leeuwenhoek is known for his work with microscopes and microorganisms.
• Option c: Dmitri Mendeleev is credited with developing the periodic table of elements, organizing elements by atomic mass and properties.
• Option d: Bill Gates is a business magnate and co - founder of Microsoft, with no connection to the periodic table.

Answer:

c. Dmitri Mendeleev