atom
gb/ˈætəm/ us/ˈætəm/
B1
Англійська
~ 2500
Значення
0 значень
Іменник
technical
B1
entity
1
smallest unit of an element
The tiniest part of an element that still has the same properties as that element.
Модель уживання:
an atom of [element]
Поширена помилка:
Learners sometimes confuse 'atom' with 'molecule'. An atom is a single particle of an element; a molecule is two or more atoms joined together.
Синоніми
particle (A more general term for a small piece of matter, not necessarily a chemical element.)
Антоніми
molecule (A molecule is made of two or more atoms bonded together, so it is larger and more complex.)
Словосполучення
split an atom
|hydrogen atom
|carbon atom
|atomic structure
|atom model
Теми
science
|chemistry
|physics
Приклади
- A water molecule is made up of two hydrogen atoms and one oxygen atom.
- Scientists can split an atom to release energy.
- Every atom of gold has the same number of protons.
Навчальні приклади
- An atom is very small.
- This is an atom of oxygen.
- Atoms make up all things.
Іменник
B2
quantity
2
a very tiny amount
A very, very small amount of something.
Модель уживання:
not an atom of [something]
Поширена помилка:
Learners may overuse this figuratively; it is more common in formal or literary contexts than in casual speech.
Синоніми
bit (A small amount, but less emphatic than 'atom'.)
Антоніми
lot (A large amount, opposite in quantity.)
Словосполучення
not an atom of truth
|without an atom of doubt
Теми
measurement
|figurative
|core_vocabulary
Приклади
- There isn’t an atom of truth in his story.
- She didn’t have an atom of doubt about his honesty.
- He showed not an atom of fear.
Навчальні приклади
- There is not an atom of sugar in this tea.
- He has not an atom of doubt.
- She does not have an atom of fear.
Граматика
Словникова форма
atom
IPA
GB/ˈætəm/
US/ˈætəm/
Склади й наголос
atom (1 склад)
Stress on 1st syllable (atom)
Форми слова
Noun
- Base: atom
- Plural: atoms
Споріднені слова
Forms
atoms
noun
Core family
atomic
adjective B2
Related words
atomize
verb
atomization
noun
Advanced or less common
subatomic
adjective
atomically
adverb
Вирази
not an atom of truth
1/nˈɑt ən ˈætəm əv tɹˈuθ/
fixed phrase
no truth at all
It means that something is completely false.
Приклади
- There is not an atom of truth in those rumors.
- His statement contained not an atom of truth.
split the atom
1/splˈɪt ðə ˈætəm/
fixed phrase
technical
break apart an atomic nucleus
To break the center of an atom to release energy.
Приклади
- Nuclear power plants do not literally split the atom in the same way as early experiments did.
- The discovery that you could split the atom changed history.