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Caesium has more electron levels than rubidium, because the electrons are further away the attraction between the outer electrons and protons in the nucleus is less. But that's not just the answer. There is also a thing called electron shielding, the negative charges, of the electrons in the energy levels closer to the nucleus, sort of repel the outer electrons so they can't get closer to the nucleus. Since the electrons are further away and have the attraction from the positively charged nucleus reduced, it takes less energy to break the attraction for caesium than rubidium.
What else can I help you with?
What element has the larger first ionization energy cesium or potassium?
Cesium has a larger first ionization energy compared to potassium. This is because cesium is located further down the periodic table in the alkali metal group, meaning it has a larger atomic radius and a lower effective nuclear charge, both of which make it easier to remove an electron from potassium than from cesium.
Does cesium have a greater 1st ionization energy than aluminum?
As you go ACROSS a PERIOD (row) IE INCREASES. As you go DOWN a GROUP (column) IE DECREASES. Caesium is down there right above francium. So his little electron is okay with being taken away because he's so far from the nucleus (everyone likes the nucleus, but the other electrons are in the way [this is called 'shielding'] and the attraction is much smaller.) Meaning it'll take a SMALL ionization energy to take it away. Aluminum also has only 1 electron in it's orbital, but it's MUCH MUCH closer to the nucleus, so it's much more attracted. It'll take a HIGH ionization energy to take it away. First level ionization energy of aluminium: 577,5 kJ/mol First level ionization energy of caesium: 375,7 kJ/mol
What elements has the largest first ionization energy a sb b se c pb d ci?
The element with the largest first ionization energy is (a) Sb (antimony). It has the highest first ionization energy among the elements listed.
Which element has a lower first ionization energy than element S?
Element P (phosphorus) has a lower first ionization energy than element S (sulfur).
Which element has a higher first ionization energy than chlorine Cl?
The element with a higher first ionization energy than chlorine Cl is fluorine F. Fluorine is located to the left of chlorine in the periodic table, which means it has a smaller atomic radius and stronger nuclear attraction, requiring more energy to remove an electron.
Which element between lithium potassium rubidium and cesium has the smallest ionization energy?
T he smallest first ionization energyis for lithium.
What is rubidium ionization energy?
the 1st ionization energy is 403.03 kJ/mol.. since it's oxidation state is +1, you don't normally take away more than one electron so the 2nd and 3rd ionization energies are much larger and don't usually matter
What element has the larger first ionization energy cesium or potassium?
Cesium has a larger first ionization energy compared to potassium. This is because cesium is located further down the periodic table in the alkali metal group, meaning it has a larger atomic radius and a lower effective nuclear charge, both of which make it easier to remove an electron from potassium than from cesium.
Which element has the smallest first ionization energy Na K Rb Li?
The element with the smallest first ionization energy is Francium, as it is located in Group 1 of the periodic table and has the largest atomic size. Among the elements listed, lithium (Li) would have the smallest first ionization energy as it is closer to the upper right of the periodic table compared to sodium (Na), potassium (K), and rubidium (Rb).
What is first ionization energy?
Sodium's first ionization energy is 495 kJ / mol.
What is fluorine's ionization energy?
The first ionization energy is 1681 kJ/mol.
What element has largest first ionization energy?
Helium has the highest ionization energy.
What elements has the highest first ionization energy?
Fluorine has the largest first ionization energy among the halogens.
What halogen element has the highest first ionization energy?
Fluorine has the largest first ionization energy among the halogens.
What is the energy needed to remove electrons from an atom called?
ionization potential energy. but remember the atom must be neutral .
What is ionization energy of boron?
Across a row on the periodic table ionization energy increases. Down a column, ionization energy decreases. --------------------------------------------------------- The first Ionization energy of Boron is 800.6 kJ mol-1
What is einsteinium's ionization energy?
The ionization energy (first) of einsteinium is 619 kJ/mol.
