The number of electrons that can occupy the sub levels being filled by that period
The property makes the materials used in fiber optic cables is:
C. High density
<h3>Fiber optic cables:</h3>
They transfer data signals in the form of light and travel hundreds of miles significantly faster than those used in traditional electrical cables. Fiber is immune to electrical interference. There is no cross - talk between signals in different cables and no pickup of environmental noise. Information traveling inside the optical fiber is even immune to electromagnetic pulses generated by nuclear devices.
Thus, correct option is C.
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Answer:
Explanation:
The human body is constantly radiating heat to its surroundings, and human comfort is closely tied to the rate of this radiation we need to know this because its part of a daily life.
The energy of a hydrogen atom in energy level n = 2 is 3.4 eV.
The ionization of energy of the hydrogen atom is 13.6 eV.
This is the minimum energy required to raise the electron from its ground state in the hydrogen atom.
n represents the Energy level.
When an electron changes from one energy level to another, the energy of the atom must change as well. It requires energy to promote an electron from a lower energy level to a higher one. This energy can be supplied by a photon whose energy E is given in terms of its frequency E = hf or wavelength E = hc/λ.
The formula for the energy of an atom is:
E = 13.6 * 
/ 
.... this represents the allowed energy level in the hydrogen atom
= 13.6 * 1 / 
since Z = 1 for hydrogen where Z is mass of atom
= 13.6 / 4
= 3.4 eV
The energy of a hydrogen atom in energy level n = 2 is 3.4 eV.
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# SPJ4
It was found that atoms are made up of even smaller particles (through experiments), and the models changed because how we thought atoms were composed turned out to be wrong, and corrections were made accordingly.
