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Innr Transition Mtls

CAVA 302/303 S1U3 L11/12 Inner Transition Metals

QuestionAnswer
The two rows of elements at the very bottom of the periodic table are the [...] The two rows of elements at the very bottom of the periodic table are the inner transition metals
The top row of the inner transition metals is the [...] (it starts with lanthanum (La)) The top row of the inner transition metals is the Lanthanides (it starts with lanthanum (La))
The bottom row of the inner transition metals is the [...] (it starts with actinide (Ac)) The bottom row of the inner transition metals is the actinides (it starts with actinide (Ac))
The inner transition metals are sometimes referred to as the [...] metals. The inner transition metals are sometimes referred to as the rare earth metals.
One of the interesting things about the inner transition metals is that these elements are so [...] in properties that they are often hard to [...]. One of the interesting things about the inner transition metals is that these elements are so similar in properties that they are often hard to tell apart.
All elements of the [...] series are radioactive. All elements of the actinide series are radioactive.
Out of the 14 elements in the actinide series, only thorium and [...] occur in nature in any significant quantity. Out of the 14 elements in the actinide series, only thorium and uranium occur in nature in any significant quantity.
Most of the elements in the actinide series are [...] elements, which are not found on Earth unless produced in a laboratory. Most of the elements in the actinide series are transuranium elements, which are not found on Earth unless produced in a laboratory.
The heaviest naturally occurring element on Earth is [...]. (probably... there may be a few traces of larger elements out there). The heaviest naturally occurring element on Earth is Uranium. (probably... there may be a few traces of larger elements out there).
Actinide-series elements have nuclei that are so large that they tend to [...] (usually into a smaller nucleus). Actinide-series elements have nuclei that are so large that they tend to break down or decay (usually into a smaller nucleus).
As the actinide-series element nuclei decay, they emit [...]. This is called [...]active decay. As the actinide-series element nuclei decay, they emit radiation. This is called radioactive decay.
Interesting Factoid: Uranium has been used for nearly [...] years as an additive to ceramics. Interesting Factoid: Uranium has been used for nearly 2,000 years as an additive to ceramics.
If you want to find an element that's only made in a laboratory, just look past [...]. If you want to find an element that's only made in a laboratory, just look past uranium.
Uranium has an atomic number of 92, so any element with an atomic number greater than 92 is a [...] element. Uranium has an atomic number of 92, so any element with an atomic number greater than 92 is a transuranium element.
[...]-uranium just means 'beyond uranium'. Trans-uranium just means 'beyond uranium'.
Created by: mr.shapard
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