onsider these elements: P, Ca, si, s, Ga A. Write an electron configuration for
ID: 697951 • Letter: O
Question
onsider these elements: P, Ca, si, s, Ga A. Write an electron configuration for each element. B. Arrange the elements in order of decreasing atomic radius. C. Arrange the elements in order of increasing ionization energy D. Use the electron configurations to explain the differences in b and c. Answers: 10. Nitryl fluoride is a reactive gas useful in rock o, and 29.23% F. Its density is 2.7 g/L at 20 C and 1.00 atm. Determine t molar mass and Lewis structure (including any resonance structures). Use et propellants. its mass percent composition is 21.55% N, 49.23 % he empirical formula, molecular formula, formal charges to verify your structure. Answer:Explanation / Answer
According to chegg rules we have to answer only first four questions.
A.
Electron configuration:
The arrangement of electrons in an atom by a superscript, in each sublevel is known as electron configuration.
P-15
1s2 2s2 2p6 3s2 3p3
Ca-20
1s22s22p63s23p64s2.
Si-14
1s22s22p63s23p2
s-16
1s22s22p63s23p4
Ga-31
1s22s22p63s23p63d104s24p1.
Atomic radius: Atomic radius decreases in going from left to right across a period. This decrease can be explained in term of the increasing effective nuclear charge in going from left to right. This means that the valence electrons are down closer to the nucleus, decreasing the size of atom. Atomic radius increases down a group, because of the increases in the orbital sizes in successive principal quantum levels.
Ca>Ga>Si>P>S : Atomic radius
P>S>Si>Ca>Ga : Ionization energy
Ionization energy: Ionization energy is the energy required to remove an electron from a gaseous atom or ion. Generally as we go across a period from left to right, the first ionization energy increases, on the other hand first ionization energy decrease in going down a group.
P has highest ionization energy because it has half shall which is stable
Ga has lower ionization energy because as we go across a period from left to right, the first ionization energy increases, on the other hand first ionization energy decrease in going down a group.
Ca has lowest atomic radius because Atomic radius decreases in going from left to right across a period. This decrease can be explained in term of the increasing effective nuclear charge in going from left to right. This means that the valence electrons are down closer to the nucleus, decreasing the size of atom.
S hasa larger atomic radius because increasing effective nuclear charge in going from left to right. This means that the valence electrons are down closer to the nucleus, decreasing the size of atom.
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