A plus ion Cation has lost electrons ionized. So in a cation there is one more proton than there are electrons. Sodium has three energy shells containing electrons.
The inner most shell contains two 2 electrons, The next outer shell contains eight 8 electrons. Finally the outermost shell contains only one 1 electron. The outer most shell loses its electron to infinity ionized So sodium atom now has eleven protons in the nucleus, but only ten electrons in the energy shells. This indicates an extra electron energy shell, since potassium is one element further down Group 1 than sodium.
The energy shell is indicated by the prefix number in the electron configuration. Na also has three energy shells, but is held close to the nucleus, because there are less electrons compared to the attraction of the nuclear protons.
Answer Save. The electron configuration is written as 1s2, 2s2, 2p6, 3s1. The electron configuration of the sodium cation is 1s2, 2s2,2p6. No 3s1. Another layer has been lost. They are atoms and ions. The element is the name given to an atom containing a certain number of protons.
Hope that helps!!!! Still have questions? Get your answers by asking now.Cs has the larger radius, as on the whole, the electrons in Cs are more pulled on by the nucleus because of the overall positive charge. O has a higher electron affinity. It only needs two more electrons to fulfill the octet rule and is as a result more reactive than nitrogen which needs three more.
Be has the higher third ionization energy. The first two electrons come off relatively easy because they are from an unfilled orbital with only 2 electrons. The third comes from a full 1s2 orbital, with a single electron pair that is strongly attracted to the nucleus.
Victoria B. Which has the higher electron affinity; N or O? Which has the larger third ionization energy; Be or N? Be right? Which of the following elements have a higher ionization energy: P or Si? P right? Answer Save. Sarcothelia Lv 5. P being more electronegative has a higher ionization energy. Chem Man Lv 7. Cs has a larger radius.
Be has a higher 3rd ionization energy. P has a higher ionization energy. Still have questions? Get your answers by asking now.If we can't tunnel through the Earth, how do we know what's at its center?
All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Hottest Questions. Previously Viewed. Unanswered Questions.
Periodic Table. Elements and Compounds. Which of the following has the largest atomic radius? Wiki User Element Cesium has the largest atomic radius. It is represented by symbol Cs. The atomic radius of Cs is approximately pm.
Francium has an atomic radius of pm Royal Society of Chemistry. The largest atomic radius is for caesium - pm.
Potassium has the largest atomic radius. The current largest atomic radius known is that of Caesium Cesium in USA with a empirically measured atomic radius of about picometers. Asked in Elements and Compounds What elements have the largest atomic radius? Francium has the largest atomic radius of all the elements on the periodic table.
Asked in Chemistry What elements in the second period has the largest atomic radius? Radium is the elements in the second period has the largest atomic radius.
Francium has the largest atomic radius in Group 1 of the Periodic Table. Asked in Metal and Alloys What elements boron aluminum gallium or indium has the largest atomic radius?
Atomic radius increases down the group. So indium will have the largest atomic radius among the options given. I guess the options are F, F- Cl and Cl. Out of these, Cl- has the largest ionic radius and Cl has the largest atomic radius. Asked in Periodic Table Which of these elements has the largest atomic radius. Aluminum potassium fluorine. It is in the 1st group of the periodic table.
Fluorine has the least atomic radius. Asked in Chemistry Which has the largest atomic radius nitrogen antimony or arsenic? You can figure out then Lithium has a larger atomic radius than hydrogen. Asked in Skeletal System Why does argon have the smallest atomic radius in period 3? Argon doesnt have the smallest atomic radius, its chlorine. Argon has the largest atomic radius in period 3. The element in the 18th column that has the largest radius is radon.
It has an atomic radius of 1.It is a soft, silvery-golden alkali metal with a melting point of It is the least electronegative element, with a value of 0. It has only one stable isotope, caesium Caesium is mined mostly from pollucitewhile the radioisotopesespecially caesiuma fission productare extracted from waste produced by nuclear reactors. The German chemist Robert Bunsen and physicist Gustav Kirchhoff discovered caesium in by the newly developed method of flame spectroscopy.
The first small-scale applications for caesium were as a " getter " in vacuum tubes and in photoelectric cells.
Inacting on Einstein's proof that the speed of light is the most constant dimension in the universe, the International System of Units used two specific wave counts from an emission spectrum of caesium to co-define the second and the metre.
Since then, caesium has been widely used in highly accurate atomic clocks. Since the s, the largest application of the element has been as caesium formate for drilling fluidsbut it has a range of applications in the production of electricity, in electronics, and in chemistry. The radioactive isotope caesium has a half-life of about 30 years and is used in medical applications, industrial gauges, and hydrology.
Nonradioactive caesium compounds are only mildly toxicbut the pure metal's tendency to react explosively with water means that caesium is considered a hazardous material, and the radioisotopes present a significant health and ecological hazard in the environment. Caesium is the softest element it has a hardness of 0. It is a very ductilepale metal, which darkens in the presence of trace amounts of oxygen.
It has a melting point of Mercury is the only stable elemental metal with a known melting point lower than caesium. Caesium forms alloys with the other alkali metals, goldand mercury amalgams.
Atomic Radius of the elements
It forms well-defined intermetallic compounds with antimonygalliumindiumand thoriumwhich are photosensitive. The golden colour of caesium comes from the decreasing frequency of light required to excite electrons of the alkali metals as the group is descended. For lithium through rubidium this frequency is in the ultraviolet, but for caesium it enters the blue—violet end of the spectrum; in other words, the plasmonic frequency of the alkali metals becomes lower from lithium to caesium.
Thus caesium transmits and partially absorbs violet light preferentially while other colours having lower frequency are reflected; hence it appears yellowish.Excluding hydrogen, on the periodic table, the elements having the largest degree of metallic character are found:. What is the negative of the energy change that occurs when an electron is accepted by an atom in the gaseous state to form an anion?
Answer to your first question indirectly I will say. As you go down in a periodic table the radius gets bigger because of the extra electrons shells. As you go right, the radius decreases because of the increased attraction of the nucleus and electrons. Find out which one is most bottom left hand side of the periodic table. You should do your homework on your own though. You don't really learn much by copying the answers from here.
The radius of the factor gets smaller as you progression from left to proper around the periodic chart. Excluding hydrogen, on the periodic table, the elements having the largest degree of metallic character are found: a. Which metal or ion is are diamagnetic? May be more than one a. Kr When an atom absorbs a photon, which of the following occurs?
An electron moves from an excited state to the ground state. An electron moves from the ground state to an excited stat. An electron moves to a lower excited state from a higher one. Answer Save. Johnny Lv 5. Still have questions? Get your answers by asking now.If we can't tunnel through the Earth, how do we know what's at its center? All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.
Hottest Questions. Previously Viewed. Unanswered Questions. Wiki User Sodium has a larger atomic radius than aluminum. The neutral atom of potassium has the largest radius. Potassium has the largest atomic radius. Look at your periodic table and you will see that K, potassium, must have the largest radius of these choices. Asked in Chemistry Rank these elements in terms of increasing atomic radius? Postassium, K, has a larger radius than sodium, Na, because it is in the next period on the table but in the same group as sodium.
From the given elements, potassium has the largest atomic radius. It is Al, Na and O. Al is aluminium, Na is sodium and O is oxygen.
Asked in Chemistry Which metal has a larger radius Li or Na? Na has a larger atomic radius than Li. Rb is the largest, Li the smallest in the row above. Asked in Planetary Science Which planet has the largest radius? Jupiter is the largest planet and therefore has the largest radius. The radius of Jupiter is 43, miles 69, kilometers.
Asked in Chemical Bonding What element has the largest ionic radius? Na has larfer radius. Since it has more shells as compared to Li.Ionic Size - Which ion is bigger?
Atomic radius increases going down the periodic table and going from right to left, meaning that Fr Francium has the largest atomic radius and He Helium has the smallest.
Asked in Elements and Compounds Which is smaller in radius bromine or sodium? Sodium Na has smaller radius than Bromine because Na has less number of shells. Al has 3 electron shells. Be has 2 electron shells. So Al has a larger atomic radius.
Which has the larger radius: Cs or Cs+?
The element in the 18th column that has the largest radius is radon.For chemistry students and teachers: The tabular chart on the right is arranged by Ionization energy. Please note that the elements do not show their natural relation towards each other as in the Periodic system. There you can find the metals, semi-conductor snon-metal sinert noble gas sesHalogens, Lanthanoides, Actinoids rare earth elements and transition metals.
Click here: for a schematic overview of the periodic table of elements in chart form. Please report any accidental mistake in the above statistics on chemical elements. Toggle navigation. Chemical elements listed by ionization energy The elements of the periodic table sorted by ionization energy click on any element's name for further information on chemical properties, environmental data or health effects.
This list contains the elements of chemistry. The first chemical element is Cesium and the last one is Helium. The unity for ionization energy is eV. About Lenntech. General Delivery Conditions.