مفردات العلماء الرئيسيين - ديمتري مندليف

known by a lot of people

someone whose job or education is about science

a country located in Eastern Europe and Northern Asia

one's brother or sister

a university in which students can study up to a bachelor's degree after graduation from school

the study of science

a branch or an area of knowledge that we study at a school, college, or university

liked or preferred the most among the rest that are from the same category

the science that studies the composition, properties, and reactions of substances

a test done to prove the truthfulness of a hypothesis

any of the simple chemical substances that consist of atoms of only one type, such as gold, oxygen, carbon, etc.

not like another thing or person in form, quality, nature, etc.

a colorless, odorless chemical element that occurs as a gas and is essential for the respiration of most living things

a metallic chemical element with a silvery-gray appearance, widely used for making tools, steel, buildings, and various industrial products

a regular and distinct sequence that can be found in certain situations

to estimate or form a conclusion about something without sufficient information to verify its accuracy

a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties

a tabular arrangement of chemical elements organized based on their atomic number, electron configuration, and recurring chemical properties

a prize or money given to a person for their great performance

a university teacher of the highest rank and a member of the faculty at a college or university

either of the two organs in the chest that allow people and many animals to breathe

a large musical instrument of the violin family that is held upright and is played by pulling a bow across its strings