(a)
Interpretation:
The energy that speed is equal to the
(b)
Interpretation:
The number of wave cycles passing a stationary point in one second.
(c)
Interpretation:
The energy that is required to remove a valence electron from an isolated gaseous atom.
(d)
Interpretation:
The rule which states that electrons are arranged in atomic orbitals in such a manner that the electrons that have the same energy are majorly arranged as unpaired.
(e)
Interpretation:
The description of the arrangement of electrons in an atomic sublevel.
(f)
Interpretation:
The electron is present the inner side of an atom and is not considered as a valence electron.
(g)
Interpretation:
A region in space where the probability of finding an electron is maximum.
(h)
Interpretation:
A spectrum that consists of all wavelengths of the visible light.
(i)
Interpretation:
The species that have the same number of electrons.
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EBK INTRODUCTION TO CHEMISTRY
- The energy needed to ionize an atom of element X when it is in its most stable state is 500kJmol1 . However, if an atom of X is in its lowest excited state, only 120kJmol1 is needed to ionize it. What is the wavelength of the radiation emitted when an atom of X undergoes a transition from the lowest excited state to the ground state?arrow_forwardThe first ionization energy of helium is 2370kJmol1 , the highest for any element. (a) Define ionization energy and discuss why for helium it should be so high. (b) Which element would you expect to have the highest second ionization energy? Why? (c) Suppose that you wished to ionize some helium by shining electromagnetic radiation on it. What is the maximum wavelength you could use?arrow_forwardDiscuss briefly the difference between an orbit (as described by Bohr for hydrogen) and an orbital (as described by the more modern, wave mechanical picture of the atom).arrow_forward
- What is the difference between an atom’s ground state and an excited state?arrow_forwardMany times the claim is made that subshells half-filled with electrons are particularly stable. Can you suggest a possible physical basis for this claim?arrow_forwardGive a brief wave description of light. What are two characteristics of light waves?arrow_forward
- What does wave-particle duality mean? What are its implications in our modem view of atomic structure?arrow_forwardDescribe briefly why the study of electromagnetic radiation bas been important to our understanding of the arrangement of electrons in atomsarrow_forward6.11 Define the term photon.arrow_forward
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