Eu2+ is stable because of the two electrons in its outermost orbit and after losing 4 electrons. Ce +4 is stable
What are lanthanide ions?
All lanthanide elements form trivalent cations, Ln3+, whose chemistry is largely determined by the ionic radius, which decreases steadily from lanthanum to lutetium. These elements are called lanthanides because the elements in the series are chemically similar to lanthanum.
The Ce metal has the following electronic configuration: [Xe] 4f¹5d¹6s²
It obtains noble gas configuration after losing 4 electrons. Ce +4 is stable, so.
Eu's electronic setup is as follows.
[Xe] 4 f ⁷6s²
[Xe] 4 f ⁷
Eu2+ is stable because of the two electrons in its outermost orbit. Additionally stable is its +3 oxidation state. Ce⁺²
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Well they can be used to make electromagnets that can power a lot of things like door bells and if you have a large not like the size of a fist larger enough to power a house or a decent sized building.
So we know that there are two types of electric currents AC and DC. (AC-DC). The flowing electrons produce something called a magnetic field and the spinning magnets cause Electric current to flow between copper wire.
Example time!
Take a battery, copper wire, and a magnet. Battery connection thing. So place the battery at the bottom put the magnet on top. With the copper wire put it into loops and when place above the battery and magnet. Give it a slight push and it should spin because of the reaction
Answer:
The answer is
<h2>100 N </h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
<h3>Force = mass × acceleration</h3>
From the question
mass = 0.05 kg
acceleration = 2000 m/s²
The force acting on the object is
Force = 0.05 × 2000
We have the final answer as
<h3>100 N</h3>
Hope this helps you
They emit b) more radiation compared to cooler objects.
This is because hotter objects have more kinetic energy (in order for the particles to vibrate- and so more infrared radiation circulates in its surroundings.)
Answer:
B and C is your answer
Explanation:
Hope I helped, Sorry if I'm wrong
