atomic number 93

9.0

A radioactive metal called neptunium found in uranium ores and nuclear reactors

noun
/əˈtɑːmɪk ˈnʌmbər nɪnˈtiː θriː/

Specialized

: número atómico 93

Neptunium, or atomic number 93, is produced as a by-product in nuclear reactors.

Examples

Traces of atomic number 93 can be found naturally in uranium ores.
The atomic number 93 refers to the element neptunium.
The scientist mentioned that atomic number 93 is known as neptunium.
Did you know that atomic number 93 is neptunium?
Neptunium, which has the atomic number 93, is used in certain advanced nuclear applications.
The periodic table shows that the atomic number 93 corresponds to the element neptunium.
In nuclear chemistry, atomic number 93 is significant because it indicates the presence of neptunium.

Synonyms

neptunium

vsatomic number 93

Specialized

1 9.9

A rare radioactive metal made in nuclear reactions and found in uranium ore

is the same element but labeled by its number rather than its name

vsatomic number 93

Specialized

1 9.8

A radioactive metal made by people and found in small amounts in uranium ore

is the same element but given by a numbered chemical label not a symbol

Surface Forms

atomic number 93 singular

atomic numbers 93 plural

Morphology

atomic + number + ninety-three

The meaning is directly compositional: 'atomic' (relating to atoms) + 'number' + '93' signals the numeric identifier for an atom, so a learner who knows the parts can infer this refers to the element with atomic number 93 (neptunium) even if they don't know the element name. This scientific naming pattern is common across languages and follows a transparent technical composition rather than an idiomatic shift.

Etymology

Atomic number 93 refers to the element neptunium. Think of planets: uranium was named for Uranus and is element 92, so the next element was named for Neptune — that is why 'atomic number 93' means this particular 'radioactive' metal.