Which elements will bond ionically with barium such that the formula would be written as BaX2?
2 answers:
Explanation:
Barium is a metal and has excess of electrons. Thus, in order to become stable barium will donate its extra electrons to an electron deficient atom. As a result, there will be formation of ionic bond.
Non-metals have deficiency of electrons and thus, they will readily accept electrons from barium in order to complete their octet. Mostly non-metals have a charge of -1.
Therefore, they will combine with barium to form a compound with formula .
For example, when barium combines with fluorine, the formula will be .
Hence, we can conclude that barium can combine with fluorine, iodine, chlorine, and bromine such that the formula could be written as .
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Complete Question
A uniform electric field of magnitude 144 kV/m is directed upward in a region of space. A uniform magnetic field of magnitude 0.38 T perpendicular to the electric field also exists in this region. A beam of positively charged particles travels into the region. Determine the speed of the particles at which they will not be deflected by the crossed electric and magnetic fields. (Assume the beam of particles travels perpendicularly to both fields.)
Answer:
The velocity is
Explanation:
From the question we are told that
The magnitude of the electric field is
The magnetic field is
The force due to the electric field is mathematically represented as
and
The force due to the magnetic field is mathematically represented as
Now given that it is perpendicular ,
=>
=>
Now given that it is not deflected it means that
=>
=>
substituting values