0
Why Ce is able to form a 4 plus ion whereas most other lanthanides form only 3 plus ions?
Wiki User
∙ 12y ago
Because it is
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Which group of elements is analogous to the lanthanides?
Lanthanide chemistry is dominated by the +3 oxidation state and as such they bear a superfical resemblance to group 13. Lanthanide 3+ ions are larger than those of group 13. Group 13 elemnents Ga, In, Tl also form compounds wher the metal oxidation number is +1. Lanthanides on the other hand can form compunds with formal oxidation number of +2, (in particular Eu) , and +4 (in particular Ce).
Molecules form between whereas ionic compounds form between?
nonmetals; nonmetals and metals
Why is a substance able to be dissolved in another to form a solution?
Because the molecules of the solid are not strongly bonded to each other and will readily bond to the liquid.
What are liquids that are able to be mixed?
They are miscible and form a solution
How ions are able to form large crystals?
by forming bonds
Do actinides and lanthanides lose electrons when combining?
Actinides and lanthanides lose electrons and form cations.
Where are lanthanides located on the periodic table?
In most wide form periodic tables, the lanthanides are in a row below the normal part of the table, with a reference showing that all the lanthanides correspond to period 6 column 3. Sometimes the lanthanide element with the lowest atomic number, lanthanum itself, is shown in the main table and the other lanthanides in a row below the main table.
How reactive are lanthanides and actinides metals?
lanthanides and actinides are fairly reactive, but not as much as say, the alkali metals in group 1
Elements most likely to form coloured salts?
Nickel, copper, uranium, chromium, molybdenum, manganese, etc. (In other words, transition metals (including the Lanthanides and Actinides)).
What is the source of the air bubble that may form in the Durham tube?
Gas, whereas other may form both acid and gas.
Why do you need to write numbers in different forms?
Because sometimes one form is easier to work with whereas at other times another form is.
What is placed at the bottom of the periodic table because they are too wide to represent the chart form?
f-block elements (lanthanides and actinides)
Which group of elements is analogous to the lanthanides?
Lanthanide chemistry is dominated by the +3 oxidation state and as such they bear a superfical resemblance to group 13. Lanthanide 3+ ions are larger than those of group 13. Group 13 elemnents Ga, In, Tl also form compounds wher the metal oxidation number is +1. Lanthanides on the other hand can form compunds with formal oxidation number of +2, (in particular Eu) , and +4 (in particular Ce).
Why do the multiples of 2 5 and 10 form columns on the hundred grid whereas other numbers do not?
Other numbers aren't factors of 100.
Why do the multiples of 2 5 10 form columns on the hundred grid Whereas other numbers do not?
Other numbers aren't factors of 100.
Is folate best absorbed from foods or from supplements?
Folic acid is the supplemental form of folate, the body is able to absorb 90% of it. Whereas the food-form, folate, can only be absorbed by 50% due to its structure.
Why noble gases don't bond well with other elements whereas all other elements easily form compounds?
Noble gases have completely filled electronic configuration and hence they are chemically inert (they generally do not form bonds).
