Does Na or Mg have a higher first ionization energy?
The first ionization energy of magnesium is larger than sodium because magnesium has one more proton in its nucleus to hold on to the electrons in the 3s orbital.
Which has higher ionization energy Na and Mg?
Magnesium (Mg) has a higher ionization energy than sodium (Na).
Why is the first ionization energy of Na less than Mg?
Na and Mg are the elements of period-3. But Mg has 2 valance electrons and sodium has one electron. Therefore,atomic size of Mg is smaller than Na. Hence,Na has less ionization energy than Mg.
Does Mg or Na have lower ionization energy?
Magnesium exists farther right along period 3 than does Sodium, and thus has a greater (first) ionization energy.
Why does Na have a higher ionization energy than Mg?
Magnesium atom has a smaller radius and higher nuclear charge than a sodium atom, thus more energy will be required to remove the electron from the same orbital (3s), making the first ionisation energy of magnesium higher than that of sodium.
What is the first ionization energy of Na?
495.8
1st–10th ionisation energies
| Number | Symbol | 1st |
|---|---|---|
| 11 | Na | 495.8 |
| 12 | Mg | 737.7 |
| 13 | Al | 577.5 |
| 14 | Si | 786.5 |
Which element has the highest first ionization energy Na Mg?
By definition, the first ionization energy of an element is the energy needed to remove the outermost, or highest energy, electron from a neutral atom in the gas phase. Li has the highest first ionization energy compared to Na & Mg.
Why ionization energy of Na is more than Mg?
So after it losing its one electron it becomes more stable by attaining noble gas configuration and hence more enthalpy is required to remove an electron from the stable atom hence the second ionisation enthalpy of sodium is greater than that of Magnesium.
What is the ionization energy of Na?
1st–10th ionisation energies
| Number | Symbol | 1st |
|---|---|---|
| 11 | Na | 495.8 |
| 12 | Mg | 737.7 |
| 13 | Al | 577.5 |
| 14 | Si | 786.5 |
Which element has the highest first ionization energy?
helium
Thus, helium has the largest first ionization energy, while francium has one of the lowest.
Why IE1 of Na is less than Mg but ie2 of Na is higher than Mg?
Answer: The 2nd I-E of sodium is higher than that of magnesium because after losing an electron, sodium attains the stable noble gas configuration. On the other hand, magnesium after losing one electron still has one electron.
Why ie1 of Na is less than Mg but ie2 of Na is higher than Mg?