Of the elements listed by atomic symbol, Cs has the largest atoms.
These six elements are Li, Na, K, Rb, Cs and Fr.
The alkali metal cations are lithium (Li+), sodium (Na+), potassium (K+), rubidium (Rb+), cesium (Cs+), and francium (Fr+). These cations are formed when alkali metals lose their outermost electron to achieve a stable electron configuration.
The alkali-group elements (group I of the periodic table) H, Li, Na, K, Rb, Cs, Fr in period 1 to 7 respectively.
Fluorine is the most electronegative element. It can form compounds with almost every element. Some examples are NaF, KF and ClF.
There is not only one element classified as alkali metal; this term refers to all periodic table column 1 elements excluding hydrogen. These are Lithium, Li; Sodium, Na; Potassium, K; Rubidium, Rb; Cesium/Caesium, Cs; Francium, Fr.
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.
Rb (Rubidium) is the largest element among Li, Na, Rb, and K as you move down the same group or in the same period from left to right on the periodic table.
Elements in Group 1 include, Li, Na, K, Rb, Cs, Fr
Examples: Na, K, Li, Cs, Ba, Ca, etc.
K
H Li Na K Rb Cs Fr
The alkali metals are: Li, Na, K, Rb, Cs, Fr.
group 1 is Li, Na, K, Rb, Cs and Fr.
Li Na K Rb Cs Fr (hope this is help)
Francium (Fr) down a group, the radius increases.
Li+,Na+,K+,Rb+,Cs+,Fr+
Group 1 Li, Na, K, Rb, Cs, Fr