aylaaktan
aylaaktan asked in Science & MathematicsChemistry · 2 years ago

The successive ionization energies of a certain element are I1 = 577.9 kJ/mol, I2 = 1820 kJ/mol, I3= 2750 kJ/mol, I4 = 11,600 kJ/mol, and...?

Question:

The successive ionization energies of a certain element are I1 = 577.9 kJ/mol, I2 = 1820 kJ/mol, I3= 2750 kJ/mol, I4 = 11,600 kJ/mol, and I5 = 14,800 kJ/mol. This pattern of ionization energies suggests that the unknown element is

Options:

a). K

b). Al

c). Cl

d). Se

e). Kr

...Show more

1 Answer

Relevance
  • Fern
    Lv 7
    2 years ago

    b) Al

    The 4th ionization energy is much larger than the others. After aluminum has

    lost three electrons to form Al3+, it has an electron configuration identical to neon.

    Since the noble gas electron configurations are particularly stable it takes a lot of energy to remove the 4th electron.

    ...Show more
Still have questions? Get your answers by asking now.
Next Question
Veruca
Veruca asked in Science & MathematicsChemistry · 1 decade ago

Which of these elements will display an unusually large jump in ionization energy values between I3 and I4, it?

Which of these elements will display an unusually large jump in ionization energy values between I3 and I4, its third and fourth ionization energies?

Please Hurry!

a. Na b. Mg c. Al d. Si e. P

Update:

Ha yea I found out it was aluminum soon after I posted it in Kaplan. But you are 100% right and you're always a help :)

Which of these elements will display an unusually large jump in ionization energy values between I3 and I4, it?

1 Answer

Relevance
  • Dr. Buzz
    Lv 7
    1 decade ago
    Best Answer

    Monica,

    That will be Al (aluminum). After losing its third electron, it will have a closed shell configuration. The fourth electron will take it out of its closed shell (1s2) configuration, so its ionization energy will soar.

    Analogously,

    Na will jump between its first and second;

    Mg will jump between its second and third;

    Si will jump between its fourth and fifth; and

    P will jump between its fifth and sixth.

    Hope that helped!

    ...Show more
Still have questions? Get your answers by asking now.
Next Question
Pia
Pia asked in Science & MathematicsChemistry · 1 decade ago

Ionization energy?

For silicon atoms, which ionization energy will show an exceptionally large increase over the preceding ionization energy? Explain.

Ionization energy?

4 Answers

Relevance
  • Anonymous
    1 decade ago
    Best Answer

    The 5th ioniztion will require much more energy than the 4th. After the fourth ioniztion, the Si4+ is in a "noble gas" configuration, meaning that it has a full octet of electrons in the outer electron shell. That configuration is very stable, and therefore the atom wants to stay like that, making it hard to remove another electron.

  • Dave
    3 years ago

    mapua pa

  • lakisha
    Lv 4
    3 years ago

    Leonard Johnson and Nicki Lewis asked the same question. You should read the answers side by side.

  • lady
    Lv 4
    3 years ago

    that is a tricky question...

Still have questions? Get your answers by asking now.
Next Question
Iris
Iris asked in Science & MathematicsChemistry · 10 years ago

Which of these ground-state ions has unpaired electrons?

P^3-

V^5+

Mg^2+

Sc^2+

S^2-

...Show more
Which of these ground-state ions has unpaired electrons?

1 Answer

Relevance
  • AloneTonight_1990
    10 years ago
    Best Answer

    P^3- and S^2-

    in case you didn't know, the negative sign means there's unpaired electrons.

Still have questions? Get your answers by asking now.