Consider the unspecified atom represented by this symbol: 79^_35 Br Complete thi
ID: 997673 • Letter: C
Question
Consider the unspecified atom represented by this symbol: 79^_35 Br Complete this table with the connect information about the atom and its subatomic particles: Imagine that the number of neutrons is increased by two. What would be the relationship of the resulting atom species to the original one? Imagine that the number of electrons is increased by one. What would be the relationship of the resulting atom species to the original one? Write the electron configuration in spectroscopic notation (1 s2 etc.) for each of the following. a sodium atom Answer_____an iron(III) ion Answer_____an oxide ion Answer_____Describe Effective Nuclear Charge and its relationship to atomic radius.Explanation / Answer
1. Name and symbol of Element - Name : Bromine, Symbol: Br
No. of protons = 35, No. of neutorns = 44, No. of electrons = 35
If the number of neutrons is increased by 2, then the new element and the original elements are said to be isotopes i.e. new element is an isotope of the original element.
If number of electrons is incresed by 1, then the new element becomes an isotone to the original element.
2. a. sodium: 1s22s22p63s1
b. iron(iii) ion : 1s22s22p63s23p63d5
c. an oxide ion: 1s22s22p6
3. Effective Nuclear charge : It is the net positive charge experienced by the valence electrons due to the sheilding of the inner orbital electrons. Zeff. = Z - S, where S is the number of the sheilding electrons.
As the atomic radius depends on the positive charges which pulls the electrons closer to the nucleus, the net effective charge is resposible for the net electrostatic force between the nucleus and the electrons,thus higher the effective nuclear charge lesser will be the atomic radius and lower the effective nuclear charge larger the radius.
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