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The 7th period elements are radioactive because they have large atomic numbers with unstable nuclei. The high number of protons and neutrons in the nucleus leads to an imbalance in forces, making the atoms prone to radioactive decay in order to achieve a more stable configuration. Additionally, the presence of unpaired neutrons or protons in these heavy elements contributes to their radioactive nature.
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What made up all radioactive elements?
After disintegration all radioactive elements are transformed in other elements.
What are elements with no stable isotopes called?
Elements with no stable isotopes are called radioactive elements. These elements spontaneously undergo radioactive decay, which leads to the formation of stable isotopes over time.
Is a period of an element the amount of time it takes for half of a radioactive isotope to decay?
Yes, the period of an element is the time it takes for half of a radioactive isotope to decay, also known as the half-life. During this time, half of the radioactive atoms in a sample will undergo radioactive decay, transforming into different elements or isotopes.
Which block on the periodic table contains the actinide series of elements?
The actinide series of elements can be found in the f-block of the periodic table, specifically in the 7th row. These elements are known for their radioactive properties and include well-known elements such as uranium and plutonium.
What element family have no radioactive elements?
Radioactive elements exist in all groups of the periodic table.
What period on the periodic table of elements contains radioactive elements and what are they called?
The period on the periodic table of elements that contains radioactive elements is the 7th period. These elements are called actinides and include elements such as uranium and plutonium.
The period of elements that are all radioactive?
All elements comprising the period 7 in the periodic table are radioactive. In total this period has 32 elements.
Which group contains only radioactive elements?
The group that contains only radioactive elements is the actinide series, which includes elements 89 to 103 on the periodic table. These elements are all radioactive due to their unstable atomic nuclei.
In what period do the elements in the actiniod series belong?
7th period.
To which period and family does promethium belong?
Promethium belongs to the lanthanide series of the periodic table, specifically to the f-block elements. It is a radioactive element and is not found naturally on Earth in significant amounts.
Radioactive elements comprise a majority?
Radioactive elements make up a small fraction of all naturally occurring elements in Earth's crust. Most elements are stable and non-radioactive. However, even though they are a minority, radioactive elements play important roles in various scientific, medical, and industrial applications.
Do trace elements have to be radioactive?
No, trace elements are not necessarily radioactive. A link to a list of elements that have no natural radioactive isotopes is at a related question, below.
What made up all radioactive elements?
After disintegration all radioactive elements are transformed in other elements.
Are all transition elements are radioactive?
Not all of the transition elements are radioactive. Many of them are, and some of them have common radioactive isotopes, but some of them have no naturally occurring radioactive isotopes. Please note that all elements have synthetic radioactive isotopes, at least.
The pressure and heat that produces magma are caused in part by?
Radioactive elements
What families have no radioactive elements?
Radioactive elements exist in all groups of the periodic table.
Which block on the periodic table contains the actinide series of elements?
The actinide series of elements can be found in the f-block of the periodic table, specifically in the 7th row. These elements are known for their radioactive properties and include well-known elements such as uranium and plutonium.
