Periodic Table Elements

noun a substance that cannot be broken down into simpler substances by chemical means; composed of atoms of only one kind

• The periodic table organizes all known chemical elements based on their atomic number and properties.
• I learned about each chemical element in my chemistry class.
• Dude, did you know that each chemical element has a unique symbol?
• In the world of music, each note can be seen as a different chemical element that contributes to the overall composition.

noun a branch of science that deals with the composition, structure, and properties of substances and the changes they undergo

• The study of chemistry involves understanding the composition and properties of matter.
• I really enjoy learning about chemistry because it helps me understand how things work.
• Chemistry class is lit, I love doing experiments and seeing reactions.
• The chemistry between the two actors on stage was palpable, making the audience feel their connection.

noun a full stop or period in American English

• The Renaissance period was a time of great artistic and cultural achievement.
• I can't wait for my vacation period to start so I can relax.
• I'm on my period, so I'm feeling a bit moody.
• The company is going through a difficult period of transition.

noun a hypothetical chemical element with the symbol Uut and atomic number 113

• Ununtrium is a synthetic element with the atomic number 113.
• I read an article about ununtrium being discovered in a laboratory.
• Have you heard about that new element, ununtrium?
• The discovery of ununtrium opened up new possibilities in the field of chemistry.

noun a series of chemical elements that includes actinium and all the elements with atomic numbers from 89 to 103

• The actinide series is a group of elements in the periodic table that includes actinium, thorium, uranium, and other radioactive elements.
• The actinide series is all those super radioactive elements you don't want to mess with.
• The actinide series is like the bad boys of the periodic table, always causing trouble.
• The actinide series is like the rock stars of the periodic table, with their wild and unpredictable behavior.