What tripositive ion has the electron configuration [kr] 4d3 ? what neutral atom has the electron configuration [kr] 5s 2 4d2 ?
1 answer:
(a)
Electronic configuration is given as follows:
Since, this is the electronic configuration of ion with+3 that means 3 electrons are removed. On adding the 3 electrons, the electronic configuration of neutral atom can be obtained.
Thus, electronic configuration of neutral atom is .
The atomic number of Kr is 36, thus, total number of electrons become 36+6=42.
This corresponds to element: molybdenum. Thus, the tripositive atom will be .
(b) The given electronic configuration is .
The atomic number of Kr is 36, thus, total number of electrons become 36+4=40.
This corresponds to element zirconium, represented by symbol Zr.
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The energy of the incident electron in keV is 5.51× 10—²² keV.
Capacity or ability to do work is termed energy. Energy exists in various forms. It can be in the form of mechanical, potential, thermal, kinetic, and many other forms. Joules is the SI of the energy. The potential energy of a system is defined as the energy stored due to its position. While kinetic energy is defined as the energy
stored due to its position.
Radius1 of the trajectory = 1.00 cm
Radius2 of the trajectory = 2.4 0 cm
The magnitude of the uniform magnetic field = 0.0440 T
A Uniform magnetic field is perpendicular to the trajectories.
The velocity of the incident electron is,
The energy of the incident electron is,
The energy in keV is,
1-kilo electron volt = 1000 electron volts
1 keV = 1000 eV
Therefore, the energy of the incident electron in keV is 5.51× 10—²² keV.
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