0
What else can I help you with?
What are polonium and radium?
Polonium is a rare radioactive element with symbol Po and atomic number 84. It was discovered by Marie Curie and her husband Pierre Curie in 1898. Radium is another radioactive element with symbol Ra and atomic number 88. It is also discovered by Marie Curie, and both polonium and radium are highly toxic and carcinogenic.
How many additional radioactive element discovered since Marie Curie discovered radium and polonium?
All chemical elements after uranium and promethium, technetium.
What is unknown radioactive elements?
A radioactive element is the element which radiates continuously giving alpha, beta, and gamma rays. The elements having atomic no. more than 82 are mostly considered as radioactive elements. These elements emit radiations by themselves even if if they are not get touched. They are discovered by Maria Curie and Pierre Curie in 1907
How many elements were discovered in the 13th century?
In the 13th century, no new chemical elements were officially discovered. The scientific understanding of elements during this time was limited, and the concept of elements as we know them today did not fully develop until the 17th century. Most knowledge was based on ancient theories, such as those from Aristotle and alchemical traditions. Therefore, the focus was more on the transformation of materials rather than the identification of distinct elements.
What made up all radioactive elements?
After disintegration all radioactive elements are transformed in other elements.
How many radioactive elements are discovered uptill now?
There are currently 38 radioactive elements that have been discovered. These elements have unstable nuclei that undergo radioactive decay, emitting radiation in the form of alpha particles, beta particles, or gamma rays.
Radium and polonium are discovered to be radioactive?
Yes, radium and polonium are radioactive elements.
What radioactive element was discovered by Pierre and Marie Curie?
The Curies discovered two radioactive elements: polonium and radium.
Who discovered the radioactive elements radium and polonium?
Marie currie
One of the most radioactive elements discovered by the curies was uranium?
No. The Curies did not discover uranium. They discovered polonium and radium, of which polonium is more radioactive.
What elements did Marie Curie discovered?
She discovered the elements Polonium, which was named after her homeland, and radium. Polonium is 4x more radioactive than uranium and radium is 10x more radioactive than uranium.
Who discovered radioactive decay in 1898?
ernest Rutherford _______________________________________________________________ Radioactive decay was actually discovered in 1896 by Henri Bacquerel. Ernest Rutherford discovered the formula of radioactive decay (Such as the falk-life, differences between alpha and beta decay and even how the elements become new elements after the decay), but he did not discover the radioactive decay himself.
How many elements were discovered by the end of 18th century?
Approx. 25 chemical elements were known in 1800.
Who discovered radioactive elements and won nobel prize for the discovery?
Marie Curie
Who discovered radioactive elements and won a Nobel Prize for the discovery?
Marie Curie
What was ernest Rutherford know for?
established that radioactive elements change into other elements by emitting radiation and discovered the proton.
What 2 elements were discovered in the 1990s?
Two elements discovered in the 1990s are Darmstadtium (Ds) in 1994 and Roentgenium (Rg) in 1994. Both are synthetic elements and are highly radioactive with short half-lives.
