Which element in the second period has the largest atomic radius?
francium
Why does atomic size increase as you move down a group?
In general, atomic radius decreases across a period and increases down a group. Down a group, the number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital. This results in a larger atomic radius.
What element has the largest atomic radius in Group 18?
radon
How do you find atomic radius?
Atomic radius is determined as the distance between the nuclei of two identical atoms bonded together. The atomic radius of atoms generally decreases from left to right across a period. The atomic radius of atoms generally increases from top to bottom within a group.
Which has largest radius?
(A) Comparison of Atomic and Ionic Radius of Group 1 (IA, alkali metals) Elements
| Element | Symbol of Atom | Trend |
|---|---|---|
| sodium | Na | ↓ |
| potassium | K | ↓ |
| rubidium | Rb | ↓ |
| cesium | Cs | ↓ largest |
Which has the largest radius CO 3?
c)Fe+3. d)Co+3. Ionic radius of Mn3+ will be largest.
Which of the following has the largest radius FCNO?
As we can see, only Potassium has four electron shells, therefore Potassium has the largest atomic size. Showing once again how Potassium has the largest atomic radius, and therefore the largest atomic size.
Which of the following has the largest radius answers com?
Jupiter is the largest planet and therefore has the largest radius.
Which atom has the largest radius O or O 2?
O2− is larger than O because the increase in electron repulsions that accompany addition of an electron causes the electron cloud to expand. O2− is larger than O because O is neutral but O2− has a charge 2−.
Which is bigger O or O 2?
Why is O 2 bigger than F?
Explanation: From top to bottom of the periodic table ions will increase in radii. However, now left to right the radius is more of a function of the number of electrons. Similarly, O2- will be larger than F- as both have 10 electrons but Z=8 for oxygen and Z=9 for fluorine.
Which is bigger Na or Na+?
Na+ is smaller than Na because, it has given away one electron because of which the electron shielding gets stronger due to more protons and less electrons. Whereas, Cl- is larger than Cl because it has gained an extra electron and so, the no.
Why NA is larger than Na+?
The total number of electrons is 10 in case of Na+ and 11 in case of Na, while the number of proton is same i.e. 11 in both case.
Why is CL larger than Na+?
Na atoms are larger than Cl atoms because the electron cloud of Cl is pulled in more tightly by the increased number of protons in the nucleus. Na+ ions are smaller than Cl- ions because the Na+ ions have electrons in only two energy levels and Cl- ions have electrons in three levels.
Which of the following has largest Na Na Na+?
Answer. Na ^- is largest in size because anions are larger than its parent atom . But since in it its valence shell has not filled, therefore it is less stable . Hence , Na is largest stable atom in these.
Which of the following has the smallest size Na Na+ Na CL?
Answer. Among the given species, Cl⁺ has the smallest size. As we move across the period, the value of the atomic radii of atoms decreases, hence the size of the atom becomes smaller.
Which has larger size Mg ++ and Na+?
Answer. thereby making Mg have a SMALLER atomic radius. Hence, Na+ will be larger in size.
Which of the following has largest size a NA B NA+ C NA D can’t be predicted?
Among the isoelectronic ions Na+,Mg2+andAl3+,Na+ ion have the largest size.
Which has the largest size Na?
Sodium metal
Which of following has the largest size?
Size decreases across a period and cation have smaller size that neutral atom so Na will have largest size among all.
Which of the following is the biggest CL or CL?
It is easier for the nucleus to attract 7 electrons than 8 electrons. More is the number of electrons , less is the ability to be attracted to the nucleus. Hence Cl- is bigger than Cl atom.
Which is larger Cl or Ar?
The chlorine ion’s radius is larger than the argon atom’s radius. As you go from left to right on the Periodic Table, the atomic radius becomes smaller. Argon has 18 protons, one more than neutral Cl and Cl- of 17, and therefore argon’s 18 protons have a stronger pull on its 18 electrons, than chlorine’s 17.
Which is bigger Cl or Br?
As Br is smaller than Cl; therefore, Br- have a smaller ionization energy than Cl-. In short, since the outermost electron in bromine is farther from the nucleus than the outermost electron in chloride, it takes less energy to remove the outermost electron in bromide.