The gap in first, second and third ionization energy values helps to guess:.
Correct answer: B. Valency of an element
- A. Atomic number of an element
- B. Valency of an element
- C. Charge on an atom
- D. Atomic mass of an element
Explanation
The ionization energy is the energy required to remove an electron from an atom or ion. The first, second, and third ionization energies are particularly important for predicting the valency of an element and understanding its chemical behavior.For example, aluminum (Al) has the following ionization energies:First ionization energy: Relatively lowSecond ionization energy: Moderately highThird ionization energy: Significantly higherBased on these values, you can predict that aluminum has a valency of +3, and it tends to lose three electrons to form Al³⁺ ions in chemical reactions.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Chemical Bonding
Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
Practise Chemical Bonding
964 free Chemical Bonding MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chemical Bonding questions
All of the following are incorrect statements regarding difference between polar and non-polar bonds EXCEPT:
The difference of number of sigma bonds and pi bonds in 1,3,5-tricyanobenzene is :
Barium ions, CN− and Co2+ form an ionic complex. If this complex is 75% ionized in an aqueous solution with Vant Hoff factor(i) equal to four and the paramagnetic moment is found to be 1.73 BM (due to spin only) then the hybridization state of Co(II) in the complex will be:
If the bond between two atoms is non polar, than the electronegativity difference between them is:
The total number of bond angles in methane is:
Metallic character depends on: