ion - Master This Word
Master this word with our 5-step learning method – Learn English in English
ion Word Meanings
- a charged particle, either positive or negative
- an atom or molecule with an electrical charge
- a fundamental unit of electrical charge in chemistry
ion Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
ion Phonetic & Pronunciation
UK
/ˈaɪən/
US
/ˈaɪən/
ion Word Etymology
Ion comes from the Greek 'ion' meaning 'going', derived from 'ienai' which means 'to go'. Imagine a charged particle dancing around, moving actively in its environment, just like a tiny dancer in a vibrant field of energy. This energetic movement represents how ions move toward charges of opposite polarity, reminiscent of a dancer gravitating toward a bright spotlight.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
Ion is a charged particle, either positive or negative, formed when atoms gain or lose electrons. In chemistry you meet ions in salts, solutions, and electrolytes; in biology ions such as sodium and calcium are essential for nerve signals and muscle contractions. In physics and electricity, ions move toward charges of opposite polarity, creating currents and shaping electric fields. The word comes from the Greek ion meaning going, reflecting constant movement. Thinking of ions as tiny dancers helps learners picture their behavior in solution, plasma, or across membranes, where charges attract or repel and ion channels regulate flows.
Usage Reminders
- Ion is a charged particle.
- Ions form when atoms gain or lose electrons.
- Not every charged particle is an ion.
- Ions move toward opposite charges in solution or under electric fields.
- In formulas, ions are written with a charge like Na+ or Cl-.
Common Misconceptions
- Ions are molecules.
- All charged particles are ions.
- Atoms can never be ions.
- Ions only exist in solid salts.
- The charge of an ion never changes.
Thinking Differences
English tends to treat ion as a concrete scientific term in many education contexts; learners often mix up ion with atom or molecule, and may overlook that ions can be polyatomic.
Learning Tips
- Link ion concepts to everyday science (salt, electricity)
- Practice writing common ions (Na+, Cl-, Ca2+)
- Distinguish ion from neutral atom by charge
- Use diagrams to show movement toward opposite charges
- Listen for 'polyatomic ion' terms in chemistry classes
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of the word 'ion'?
A.A subatomic particle
B.A type of metal
C.A small mammal
D.A type of fruit
Step 2: Usage
In which of the following sentences is the word 'ion' used correctly?
A.The ion of the element has a positive charge.
B.She liked to eat ion for breakfast.
C.He bought a new ion at the store.
D.We went for a walk in the ion park.
Step 3: Similar Words
Which word is a synonym of 'ion'?
A.Molecule
B.Atom
C.Proton
D.Neutron
Step 4: Opposite Words
Which word is an opposite of 'ion'?
A.Substance
B.Compound
C.Element
D.Negative
Step 5: Mastery
How are ions used in everyday life?
A.To power electronic devices
B.To cook food
C.To build houses
D.To write books
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