ਇੱਕ ਅਸਥਾਈ ਰੇਡੀਓਐਕਟਿਵ ਤੱਤ ਲੀਡ ਤੋਂ ਯੂਰੇਨੀਅਮ ਵਿੱਚ ਐਕਟਿਨੀਅਮ ਵਿੱਚ ਅਤੇ ਫਿਰ ਲੀਡ ਵਿੱਚ ਵੱਖ ਕੀਤਾ ਜਾਂਦਾ ਹੈ,

protoactinium's Usage Examples:

brevium (from Latin brevis meaning brief); the name was changed to protoactinium (from Greek πρῶτος + ἀκτίς meaning "first beam element") in 1918 when.

niobium/columbium, lutecium/cassiopeium, hafnium/celtium, tungsten/wolfram, and protoactinium/brevium.

Protactinium (formerly protoactinium) is a chemical element with the symbol Pa and atomic number 91.

this element was discovered in 1918, and thus the name was changed to protoactinium, and then in 1949 to its present name, protactinium.

of ones that existed back then: beryllium/glucinium, niobium/columbium, lutecium/cassiopeium, hafnium/celtium, tungsten/wolfram, and protoactinium/brevium.

The name was changed to "protoactinium" in 1918 and shortened to protactinium in 1949.

Fajans agreed to Meitner naming the element "protoactinium" (subsequently shortened to protactinium), and assigning it the chemical.

Synonyms:

protactinium, metal, Pa, metallic element, atomic number 91,

Antonyms:

nonmetallic,