On the first two columns of the table, i.e., Magnesium, Potassium, Sodium, Calcium,..
The alkali metal found in period 6 is caesium. Its symbol is Cs
This chemical element is cesium (Cs).
an alkali metal
yes, it is an element. You can check it in the periodic table.
Helium is located on the group 18 and period 1 on the modern periodic table.
Ir refers to iridium element that is placed in group-9 and period-6 in the modern periodic table.
Potassium
an alkali metal
All of them do.
Potassium is the alkali in period four of the periodic table. Its symbol is K.
The first element in a period is an alkali metal.
yes, it is an element. You can check it in the periodic table.
Francium is amrmber of the alkali metal familiy (group 1 in the Periodic Table of Mendeleev): Li, Na, K, Rb, Cs, Fr.
Sodium is a metal in Group 1 and Period 3 of the Periodic table. It is an alkali-metal.
Calcium
Helium is located on the group 18 and period 1 on the modern periodic table.
Ir refers to iridium element that is placed in group-9 and period-6 in the modern periodic table.
Potassium
Sodium is found in Group 1, also known as the Alkali metals or Lithium family, Period 3, with an atomic number of 11 and is represented by the symbol "Na".