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because the second ionisation means removing the second electron from the potassium atom. Potassium only has one electrin in its outer most shell so the second electron would be in another electron shell which is closer to the nucleus meaning there is a stronger attraction to that electron because of the protons in the nucleus which are positive and attrct the negative electrons so more energy is needed to remove the second electron
What else can I help you with?
Who of these has the smallest radius Lithium Oxygen Potassium or Sulfur?
Lithium has the smallest atomic radius among the elements listed.
What is the difference between the atomic radii of sodium (Na) and potassium (K)?
The atomic radius of sodium (Na) is smaller than the atomic radius of potassium (K). Sodium has a smaller atomic radius because it has fewer electron shells compared to potassium.
Which atom has the larger atomic radius K or Li?
K has a larger atomic radius than Li. This is because atomic radius generally increases down a group in the periodic table, so potassium (K) being below lithium (Li) in Group 1 will have a larger atomic radius.
Which has the smallest radius K Rb K Rb?
Potassium's atomic radius is smaller than rubidium's because potassium has fewer energy levels of electrons.
What is the atomic radius of lithium in angstroms?
The atomic radius of lithium is approximately 1.23 angstroms.
Who of these has the smallest radius Lithium Oxygen Potassium or Sulfur?
Lithium has the smallest atomic radius among the elements listed.
What element in the secound period has the largest atomic radius carbon lithium potassium or neon?
Lithium.
What is the difference between the atomic radii of sodium (Na) and potassium (K)?
The atomic radius of sodium (Na) is smaller than the atomic radius of potassium (K). Sodium has a smaller atomic radius because it has fewer electron shells compared to potassium.
What has the smallest atomic radius out of hydrogen sodium and lithium?
Helium has the smallest atomic radius out of hydrogen, sodium, and lithium. This is because helium has a full electron shell, leading to a smaller effective nuclear charge that pulls the electrons closer to the nucleus, resulting in a smaller atomic radius.
Which atom has the larger atomic radius K or Li?
K has a larger atomic radius than Li. This is because atomic radius generally increases down a group in the periodic table, so potassium (K) being below lithium (Li) in Group 1 will have a larger atomic radius.
Which has the smallest radius K Rb K Rb?
Potassium's atomic radius is smaller than rubidium's because potassium has fewer energy levels of electrons.
The atomic radius of potassium is smaller than the atomic radius of?
Rubidium; the next higher atomic numbered element in the same column of the periodic table always has a higher atomic radius, with some exceptions among transition elements due to the "lanthanide contraction". However, potassium and rubidium are not transition elements.
Which atom is the smallest among lithium and fluorine?
The smallest atom is lithium, as it has a smaller atomic radius compared to fluorine. This is because as you move across a period on the periodic table, atomic radius decreases due to increased nuclear charge pulling the electrons closer to the nucleus.
What is smaller than the atomic radius of beryllium?
Generally, any element with a lower atomic number.
What is the atomic radius of lithium in angstroms?
The atomic radius of lithium is approximately 1.23 angstroms.
What atom has the largest atomic radius calcium iodine potassium or cesium?
Cesium has the largest atomic radius among calcium, iodine, potassium, and cesium. It is located at the bottom of the periodic table in Group 1 (alkali metals), and as you move down a group, atomic radius increases due to additional electron shells.
How does calcium atomic radius compare to magnesiums radius and potassiums radius?
Calcium has a larger atomic radius than magnesium and a smaller atomic radius than potassium. This trend is due to the increase in number of protons and electrons as you move across the period on the periodic table from magnesium to calcium to potassium.
