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.
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.
Fluorine is the most electronegative element. It can form compounds with almost every element. Some examples are NaF, KF and ClF.
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.
H Li Na K Rb Cs
Li Na K Rb Cs Fr (hope this is help)
group 1 is Li, Na, K, Rb, Cs and Fr.
Group 1 Li, Na, K, Rb, Cs, Fr
Francium (Fr) down a group, the radius increases.