The element with 8 electrons in its 3d sublevel is Ni,
Nickel. The answer is letter D. The
rest of the choices do not answer the question above.
Answer: has zero mass
is an electron
has a -1 charge
is electromagnetic energy
Explanation:
A beta-particle is an electron emitted from the nucleus of an atom following the decay of a neutron into a proton. Beta rays are deflected by a magnetic field in a direction that indicates a negative charge, thus they are electromagnetic in nature.
The beta particle released is basically a electron with -1 charge and no mass.
General representation of beta particle in the form of
given as 
where,
Z represents Atomic number
A represents Mass number
X represents the symbol of an element
Answer:
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As we know V1/T1=V2/T2
so, V1=3.60
V2=6.25
T1=45c=318k
T2=required
solution!
T2=V2 multiply by T1/V1 so
put the values and find your answer which should be 552k