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Why is the ionization energy of a sodium atom greater than that of a potassium atom?
Wiki User
∙ 14y ago
Caesium's single outer electron is much further from the nucleus than that of sodium, so caesium loses its valence electron much easily than sodium, therefore caseium is much more reactive than sodium.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoit is all about the size of the electron cloud surrounding the nucleus. Cesium has more electrons than sodium and therefore the negative valence electrons are held further from the positive nucleus. As a result, an electron held further from the nucleus, such as cesium, requires less energy (ionization energy- energy required to convert the atom to its ion) to be removed from the atom, thereby ionizing it.
Wiki User
∙ 14y agoSodium has a higher ionization energy than potasium because the outer electron in sodium is closer to the effective (inner electron shielded) nuclear charge of +e than the potassium atom's outer electron is to it's effective (inner electron shielded) nuclear charge of +e because it is in the N=4 level as opposed to the sodium being in the N=3 level, approximating the single electron outer shell atoms. The coulomb potential and quantum mechanics dictate that this be so.
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What elements has the greatest ionization energy Sodium Potassium Chlorine or Bromine?
chlorine (greatest), bromine, sodium, potassium (least)
Out of sodium potassium rubidium and cesium Which element has the greatest ionization energy?
Sodium has the greatest ionization energy of the four elements listed from column 1 of a wide form periodic table. Among this group of metals that readily form cations, the largest always has the lowest ionization energy and the smallest has the most. This is generally ascribed to the fact that the valence shell electron is further from the nucleus in the largest element and nearest in the smallest element.
Why is sodium nitrate more soluble than potassium nitrate?
Yes. Because hydration energy of Na+ is greater than K+. More the hydration energy greater is solubility. A compound is soluble if hydration energy is greater than lattice energy.
Why is the ionistaion energy of magnesium higher than that of sodium?
because ionization energy increases from left to right on the periodic table. Ionization energy is the amount of energy needed to take an electron away from the atom, or the energy needed to ionize it. Since Sodium is more likely to give up an ion to complete the octet rule, it has a higher ionization energy.
Which element has a lower first ionization energy than element S?
Na, sodium
Which is more reactive sodium or barium?
sodium because it's the first group and first group are the most
What are the ionisation enthalpies of potassium and sodium?
First ionization energy of sodium is 495,8 kJ/mol.First ionization energy of potassium is 418,8 kJ/mol.
Which of the elements sodium calcium potassium and magnesium has the smallest first ionization energy?
Sodium
Does sodium have the larger first ionization energy than potassium?
yes, it does
What elements has the greatest ionization energy Sodium Potassium Chlorine or Bromine?
chlorine (greatest), bromine, sodium, potassium (least)
What element in family IA has the lowest ionization energy?
the lowest ionization energy in IA :hydrogen ,lithiun ,sodium and potassium
What is the group trend for the ionization energy for the alkali metals?
As you go down the group (any group), ionization energy decreases. So in terms of ionization energy, for the alkali metals, Lithium > Sodium > Potassium > Rubidium > Caesium > Francium
What is first ionization energy?
Sodium's first ionization energy is 495 kJ / mol.
What is the trend in ionization energy of Na Cl F?
The ionization energy increase from sodium to fluorine.
What provides energy to run sodium potassium pump?
ATP provides the energy for the sodium potassium pump.
Does sodium have a low or high ionization energy?
low
Why is sodium more reactive than lithium?
Sodium is more reactive than Lithium because the metals of Group 1 become more reactive as we go down the group. The ionization energy of lithium is greater than the ionization energy of sodium, and thus sodium is more reactive.
