0
This doesn't really mean the electron has negative energy or energy less
than zero. It is merely a matter of convention and the way the energy
equation is written.
"Because it takes a minimum amount of energy, called the "ionization energy" to strip or ionize a bound electron from the Hydrogen atom, energy levels are usually referred to as being negative quantities. In both classical physics and quantum mechanics the absolute value of energy is irrelevant; only energy differences matter. It is convenient to say that when ionized the electron will have zero binding energy to the proton. With this convention, the different energy levels of a Hydrogen atom are given by the equation:
E = - E (z)/n^2
(notice that negative sign in the equation)
where E(z) = 13.6 eV (1 eV = 1.602×10-19 Joules) and n = 1,2,3… and so on so that the ground state has energy E1= -13.6 eV and the second energy level (the first excited state) has energy E2 = -13.6/4 eV = -3.4 eV."
Simple as that.
What else can I help you with?
Will the emission wavelength be greater or less in an atom when 2 energy levels are separate by 4863 angstroms?
Suppose the atoms in a receding cloud have two energy levels separated by an energy corresponding o 4863 Angstroms. The observer will see emissiom at a greater or less wavelength.
What energy level is less abundant?
Generally, higher energy levels are less abundant than lower energy levels. This is because higher energy levels require more energy input to reach and maintain, so they are less commonly found in nature compared to lower energy levels that are more stable and prevalent.
What can you infer about helium from the fact that it is made by a nuclear fusion reaction inside the sun?
That the mass of a helium nucleus is larger than the mass of the hydrogen nucleus. Also, since the star uses this process to produce energy, that the helium atom has less energy than the original hydrogen atoms - and therefore also less mass.
Which atom is more chemically reactive an atom with a partly filled energy level or an atom with all energy levels completely filled and why?
If all the electron orbitals are filled then the atom is inert. It will not chemically react with anything. If an atom has empty spaces in the outer orbit, it will react with other elements. Electrons from other elements can share positions in the outer orbits.
Does a hydrogen atom expand or contract as it moves from its ground state to an excited state?
A hydrogen atom expands as it moves from its ground state to an excited state. This is because the electron in the excited state is farther away from the nucleus, increasing the average distance between the electron and proton in the atom.
Does it take more, less, or the same amount of energy to ionize a hydrogen atom compared to other elements?
It takes less energy to ionize a hydrogen atom compared to other elements.
Why does hydrogen have the simplest bright light spectrum?
Because the bright line spectrum is generated by the transition of electrons in the atom among higher and lower energy levels, and no other atom of any other element has less than one electron in it.
How do you explain the diagram that shows 4 energy levels of hydrogen - 1 at the bottom 4 at the top - the values are n4-0.85eV n3-1.51eV n2-3.4eV n1-13.6eV?
The diagram shows the ionization energies of hydrogen. The ionization energy for a ground-state electron in hydrogen is 13.6eV. Let's jump. An electron orbits an atom of hydrogen in as low an energy level as possible. That's the ground state of hydrogen. To tear that electron away, it takes some amount of energy. In this case, it takes 13.6eV to strip off that electron. But what if the electron is in the next higher allowable energy level because the gas it hot? In that case, it takes less energy to tear that electron away because you've got a "head start" owing to the fact that the electron is in a higher orbital than the ground state. And what if it's in the next higher allowable energy level? Or the next? Less and less energy is required to strip off the electron as it moves to higher energy levels. These are the ionization energies of hydrogen. These energy levels are specific to hydrogen. Each other element will have a different set if ionization energies associated with it. And with atoms with many electrons and complex electron structures, the problem can quickly become very complex.
Will kilogram of hydrogen contain more atoms then kilogram of lead?
Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.
Where is shielding the lowest on the periodic table?
The higher you are on the periodic table, the less energy levels of electrons there are in each atom, and therefore the less nuclear shielding.
Will the emission wavelength be greater or less in an atom when 2 energy levels are separate by 4863 angstroms?
Suppose the atoms in a receding cloud have two energy levels separated by an energy corresponding o 4863 Angstroms. The observer will see emissiom at a greater or less wavelength.
Where are the electrons with less energy most likely located?
Electrons with less energy are most likely located closer to the nucleus of an atom. This is because electrons with lower energy levels have lower energy levels and are more strongly attracted to the positively charged nucleus.
How many electrons are in a positively charged hydrogen atom?
None. A hydrogen atom has one proton and one electron (no neutron). Removing the electron leads to just a proton, no electrons.
What energy level is less abundant?
Generally, higher energy levels are less abundant than lower energy levels. This is because higher energy levels require more energy input to reach and maintain, so they are less commonly found in nature compared to lower energy levels that are more stable and prevalent.
What type of charge does a hydrogen atom of an ammonia molecule have?
A hydrogen atom of an ammonia molecule has a slight positive charge, due to the high electronegativity of the nitrogen atom.
How the wavelengths of light emitted by an atom provide information about electron energy levels?
First, calculate the energy of the photon by using the wave length and then see which the energy differences between electon levels. If it is equal, then it is the right transition The energy of a photon is proportional to its frequency
What can you infer about helium from the fact that it is made by a nuclear fusion reaction inside the sun?
That the mass of a helium nucleus is larger than the mass of the hydrogen nucleus. Also, since the star uses this process to produce energy, that the helium atom has less energy than the original hydrogen atoms - and therefore also less mass.
