Element
EL-uh-ment
/ˈɛlɪmənt/
A pure chemical substance consisting of only one type of atom, distinguished by its atomic number.
Elements are the fundamental chemical building blocks listed on the periodic table. They cannot be broken down into simpler chemical substances by ordinary chemical means.
The story behind the word. The word 'element' comes from the Latin 'elementum,' which meant 'rudiment,' 'first principle,' or 'basic constituent.' Its exact origin is a bit murky, but the Romans used it to refer to the fundamental parts of things, much like the letters of the alphabet. In alchemy and early chemistry, 'elements' referred to the basic substances from which all matter was thought to be composed, a concept refined over centuries to our modern understanding of chemical elements.
Word relationships
- constituent: More general term for a part of a whole; 'element' is specific to pure chemical substances.
- component: Similar to constituent, but 'element' has a precise chemical definition.
Commonly confused with
- Compound: An element is a pure substance of one type of atom; a compound is a substance formed from two or more different elements chemically bonded.
- Atom: An atom is the smallest unit of an element; an element is a collection of identical atoms.
Word family
- elementary (adjective): Relating to an element; basic or fundamental.
Collocations
- chemical element
- trace element
- radioactive element
- new element
Idioms & expressions
- in one's element
- the elements (weather)
Example sentences
- "Oxygen is an essential element for life, making up about 21% of Earth's atmosphere." Referring to a specific chemical element.
- "The periodic table organizes all known chemical elements by their atomic number and electron configuration." Discussing the periodic table.
- "Water is not an element; it is a compound made of hydrogen and oxygen." Explaining basic chemistry.
Memory hook
Think of 'EL-ement' as the 'EL-evator' to understanding chemistry, taking you to the fundamental level. EL-ement: EL-evator to basics
When not to use
Do not confuse 'element' with 'component' or 'part' in a general sense; in chemistry, it has a precise meaning.
Fun facts
- There are 118 known elements, with about 92 occurring naturally on Earth.
- The most abundant element in the universe is hydrogen.
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