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because when you climb up or down a ladder, you must step on a rung. You can't step between the rungs. the same principle applies to the movement of electrons between energy levels in an atom. (Chemistry [Mc Graw Hill] p.75)
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How do electrons create the colors in a bright line emission spectrum?
When the electron falls from an higher energy level to lower energy level, photons are liberated. The energy is found to be the difference between the two levels which determines the color of the emission spectrum depending on wavelength.
Is light emitted when an electron makes a transition to a lower energy level?
No, as energy is absorbed. When the reverse happens, the higher state to lower state, the electron is returning to its lower energy level ground state and energy is released in the form of a photon.
When an electron drops from a higher energy state to a lower energy state?
A photon is emitted when an electron falls from a higher to lower orbital. A photon is an elementary particles, the quantum of light and all other forms of electromagnetic radiation.
What happens to the electron molecules when chlorophyll molecules absorb light energy?
they are transferred to an electron carrier
Why there is big gap between first and second ionization energies?
Ionization energies are the amount of energy needed to remove an electron from an atom in the gaseous state, thereby giving the atom a positive charge and making it an ion. Ions get a +1 charge for each electron lost. It is this positive charge of the atom that makes the second ionization energy considerably greater than the first. Not only does the second electron have to overcome the initial attractive forces to nucleus, it must also overcome the extra +1 charge the atom has after the loss of the first electron, which simply takes more energy.
What makes electron change from high energy to low energy?
cause it does
How the energy of an electron at infinity can be zero?
That's just the way it is defined. When talking about potential energy, what matters is differences in energy levels; any energy level can be arbitrarily defined as zero. However, it makes calculations simpler if you define the potential energy at an infinite distance as zero.
How do electrons create the colors in a bright line emission spectrum?
When the electron falls from an higher energy level to lower energy level, photons are liberated. The energy is found to be the difference between the two levels which determines the color of the emission spectrum depending on wavelength.
In the bohr model what happens when an electron makes transitions between orbits?
The electrons can only travel in certain orbits: at a certain discrete set of distances from the nucleus with specific energies. # The electrons of an atom revolve around the nucleus in orbits. These orbits are associated with definite energies and are also called energy shells or energy levels
A dog chasing a rabbit needs energy from the food it has eaten which process makes the usable energy for the dog?
the electron transport chain
Is light emitted when an electron makes a transition to a lower energy level?
No, as energy is absorbed. When the reverse happens, the higher state to lower state, the electron is returning to its lower energy level ground state and energy is released in the form of a photon.
Why Na is less reactive than K?
Potassium's 1 valence electron is farther away from its nucleus than sodium's 1 valence electron is from its nucleus. Potassium is one period up from sodium (well, down on the p.t.e., but up in number of energy levels), so the attraction between potassium's nucleus and outermost electron is a little less than in sodium, so that electron is more likely to go flying, which makes potassium more reactive.
Which process makes the most usable energy for the dog?
The electron transport chain
What does drinking a lot of caffeine do to you?
it makes your energy levels go up but your bladder levels go down basically...
A dog chasing a rabbit needs energy from the food it has eaten . Which process makes the most usable energy for the dog?
Electron transport chain
Dog chasing a rabbit needs energy from the food it has eaten. Which process makes the most usable energy for the dog?
Electron transport chain
What is the difference between electromagnetic energy and thermal energy?
Thermal energy ( heat energy ) makes heat and electromagnetic makes light that you can see
