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What series are called elements 57 to 70?
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
What is the major difference between lanthanides and actinides?
Generally speaking, the lanthanides are naturally occurring and stable, although relatively uncommon. The actinides are naturally occurring through uranium; after that, they're synthetic, and all are unstable (radioactive.)
What are the 2 words that describe the classification of the 17 chemical elements with the numbers 57-71?
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
Do actinides and lanthanides lose electrons when combining?
Actinides and lanthanides lose electrons and form cations.
How reactive are lanthanides and actinides metals?
Lanthanides and actinides are generally less reactive than alkali or alkaline earth metals. They tend to form stable compounds and exhibit a variety of oxidation states due to the presence of f-orbitals in their electronic configuration. Actinides may show greater reactivity due to the availability of f-orbitals for bonding.
What elements on the periodic table is a radioactive element?
Lanthanides and Actinides probably
A major difference between the two rows of inner transition elements is that the lanthanides?
are radioactive and the actinides are not
How is promethium different from the other lanthanides?
Promethium is the only lanthanide that is radioactive and does not have stable isotopes. It is also challenging to study due to its radioactivity. Additionally, promethium has unique chemical properties compared to other lanthanides.
What series are called elements 57 to 70?
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
What are the properties of lanthanides and actinides?
The lanthanides and actinides are part of the inner transition metals. Actinides are all radioactive, highly electropositive and tarnish readily in air. Lanthanides burn easily in air, have high melting and boiling points and are strong reducing agents.
What is the major difference between lanthanides and actinides?
Generally speaking, the lanthanides are naturally occurring and stable, although relatively uncommon. The actinides are naturally occurring through uranium; after that, they're synthetic, and all are unstable (radioactive.)
What are the 2 words that describe the classification of the 17 chemical elements with the numbers 57-71?
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
What is the difference between lanthanides and actinides?
Wht is the difference between Lanthanides and Actinides?
What about the complex formation ability of lanthanides as campared to actinides?
describe the complex formation by lanthanides?
What is the first actinide element?
ActinidesThis is a group of elements within the periodic table and are also known as the transuranics. The name refers to those elements with increasing atomic no. from actinium, which all have similar chemical properties, like the lanthanides. The first few members of the group are the naturally occurring elements actinium, thorium, proactinium and uranium. Beyond this elements have been made artificially by radioactive bombardment. These artificial elements are unstable, some have very short lifeimes and undergo spontaneous radioactive decay.
Do actinides and lanthanides lose electrons when combining?
Actinides and lanthanides lose electrons and form cations.
How reactive are lanthanides and actinides metals?
Lanthanides and actinides are generally less reactive than alkali or alkaline earth metals. They tend to form stable compounds and exhibit a variety of oxidation states due to the presence of f-orbitals in their electronic configuration. Actinides may show greater reactivity due to the availability of f-orbitals for bonding.
