atom
gb/ˈætəm/ us/ˈætəm/
B1
Английский
~ 2500
Значения
0 значений
Существительное
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 употребления:
an atom of [element]
Частая ошибка:
Learners sometimes confuse 'atom' with 'molecule'. An atom is a single particle of an element; a molecule is two or more atoms joined together.
Синонимы
particle (A more general term for a small piece of matter, not necessarily a chemical element.)
Антонимы
molecule (A molecule is made of two or more atoms bonded together, so it is larger and more complex.)
Коллокации
split an atom
|hydrogen atom
|carbon atom
|atomic structure
|atom model
Темы
science
|chemistry
|physics
Примеры
- 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.
Примеры для изучающих
- An atom is very small.
- This is an atom of oxygen.
- Atoms make up all things.
Существительное
B2
quantity
2
a very tiny amount
A very, very small amount of something.
Модель употребления:
not an atom of [something]
Частая ошибка:
Learners may overuse this figuratively; it is more common in formal or literary contexts than in casual speech.
Синонимы
bit (A small amount, but less emphatic than 'atom'.)
Антонимы
lot (A large amount, opposite in quantity.)
Коллокации
not an atom of truth
|without an atom of doubt
Темы
measurement
|figurative
|core_vocabulary
Примеры
- 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.
Примеры для изучающих
- 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.
Грамматика
Словарная форма
atom
IPA
GB/ˈætəm/
US/ˈætəm/
Слоги и ударение
atom (1 слог)
Stress on 1st syllable (atom)
Формы слова
Noun
- Base: atom
- Plural: atoms
Родственные слова
Forms
atoms
noun
Core family
atomic
adjective B2
Related words
atomize
verb
atomization
noun
Advanced or less common
subatomic
adjective
atomically
adverb
Выражения
not an atom of truth
1/nˈɑt ən ˈætəm əv tɹˈuθ/
fixed phrase
no truth at all
It means that something is completely false.
Примеры
- 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.
Примеры
- 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.