Quick Answer: What Element Has 104 Neutrons?

Who discovered elements 104 and 105?

James A.

HarrisJames A.

Harris was the African-American nuclear scientist who was a co-discoverer of the elements Rutherfordium and Dubnium, which are respectively elements assigned the atomic numbers 104 and 105..

Who discovered Element 105?

Georgy FlerovIn 1968, a team led by Georgy Flerov at the Russian Joint Institute for Nuclear Research (JINR) bombarded americium with neon and made an isotope of element 105.

Who discovered Bohrium?

Peter ArmbrusterPeriodic Table appDiscovery date1981Discovered byPeter Armbruster, Gottfried Münzenberg and colleaguesOrigin of the nameBohrium is named for the Danish atomic physicist Niels BohrAllotropes

Is rutherfordium radioactive?

Rutherfordium is a highly radioactive chemical element. His most stable isotope Rf 265 has an half like of approximately 13 hours. Nine of its isotopes are known.

Why is the symbol for the transuranic element rutherfordium RF instead of RU?

Why is the symbol for the transuranic element Rutherfordium Rf instead of Ru? Transuranic elements are the chemical elements having atomic number greater than 92. … These elements do not occur naturally, but they are created artificially.

Is Xe an element or compound?

Xenon (Xe), chemical element, a heavy and extremely rare gas of Group 18 (noble gases) of the periodic table. It was the first noble gas found to form true chemical compounds. More than 4.5 times heavier than air, xenon is colourless, odourless, and tasteless.

What element has a mass number of 104?

RutherfordiumRutherfordium is a synthetic chemical element with the symbol Rf and atomic number 104, named after New Zealand physicist Ernest Rutherford.

Who discovered Element 104?

Igor KurchatovSoviet scientists at the Joint Institute for Nuclear Research at Dubna, Russia, U.S.S.R. , announced in 1964 the discovery of element 104, which they named kurchatovium, symbol Ku (for Igor Kurchatov, a Soviet nuclear physicist).

What are elements 104 and 105?

Elements 104 and 105 in our International Year of the Periodic Table series are rutherfordium and dubnium. Both are synthetic elements, and American and Russian scientists squabbled over who discovered them and what to call them. Rutherfordium was the first of these two elements to be discovered in 1964.

What element is a metal with 104 electrons?

RutherfordiumNameRutherfordiumAtomic Mass261.0 atomic mass unitsNumber of Protons104Number of Neutrons157Number of Electrons1049 more rows

What does seaborgium mean?

: a short-lived radioactive element that is produced artificially — see Chemical Elements Table.

What does V stand for on the periodic table?

VanadiumVanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal.

Is Silver reactive?

Under standard conditions silver is a soft metal that has a shiny metallic finish. … Silver is not very reactive. It will not react with air or water. It will tarnish, however, when coming into contact with sulfur compounds.

Which period number is aluminum?

Fact boxGroup13660.323°C, 1220.581°F, 933.473 KPeriod32519°C, 4566°F, 2792 KBlockp2.70Atomic number1326.982State at 20°CSolid27Al2 more rows

What is 104 on the periodic table?

RutherfordiumAtomic Number:104Atomic Radius:Atomic Symbol:RfMelting Point:Atomic Weight:267Boiling Point:Electron Configuration:[Rn]7s2[1][2]5f146d2Oxidation States:

How did Bohrium get its name?

Word Origin: Bohrium was named for Danish physicist Niels Bohr. For a time, it was known as nielsbohrium with the symbol Ns. Discovery: Bohrium was first discovered by a team of scientists in Dubna, Russia, in 1976.

How is rutherfordium used in everyday life?

Uses of Rutherfordium Because rutherfordium is made within the lab, there are not very many uses for this element commercially. On the other hand, rutherfordium has been used within the laboratory setting to conduct research. Most elements that are highly radioactive are used for nuclear power and medicinal purposes.

What is Rutherfordiums atomic mass?

261 uRutherfordium/Atomic mass