From the given elements, Mg has the largest atomic radius, hence the size.
Of the elements listed by atomic symbol, Cs has the largest atoms.
For the representative elements (main group elements), atomic radius generally decreases from left to right across a period. Example: B and Fl: Fl has the smaller atomic radius Li and Be: Be has the smaller atomic radius
1 H Hydrogen3 Li Lithium11 Na Sodium
The decrease in radius from Li to Li and then to Li₂ can be attributed to the increasing effective nuclear charge experienced by the electrons. In lithium (Li), the single electron in the outer shell experiences minimal shielding from the inner electrons, leading to a larger atomic radius. However, when lithium forms Li₂, the two lithium atoms share electrons in a covalent bond, resulting in a stronger attraction between the nuclei and the shared electrons, which pulls the electron cloud closer and decreases the overall radius.
From the given elements, Mg has the largest atomic radius, hence the size.
Of the elements listed by atomic symbol, Cs has the largest atoms.
For the representative elements (main group elements), atomic radius generally decreases from left to right across a period. Example: B and Fl: Fl has the smaller atomic radius Li and Be: Be has the smaller atomic radius
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.
The element with the longest covalent radius among Li, B, N, and F is Li. This is because as you move down a group in the periodic table, the atomic radius increases due to the addition of new electron shells. The covalent radius generally follows this trend.
Ca, Mg, Be, Fr, Cs, Rb, K, Na, Li, H
Lithium has a larger atomic radius than hydrogen.
Rb (rubidium) is the largest element among K (potassium), Rb (rubidium), Na (sodium), and Li (lithium). This is because as you move down a group in the periodic table, the atomic size increases due to the addition of more electron shells.
No, the atomic radius of neon (Ne) is smaller than that of lithium (Li). This is because as you move across a period in the periodic table, the atomic radius decreases due to increasing nuclear charge and stronger attraction for electrons.
Rb
No, H+ ions are the smallest (proton size), hydrogen atoms and even Li+ ions are smaller than Li atoms.
1 H Hydrogen3 Li Lithium11 Na Sodium