Cesium.
See the link below for a Periodic Table
The element with atomic number 55 on the periodic table is cesium.
Gold is number 79 on the periodic table
The elements arranged according to their atomic number in the table are called periodic table.
Polonium has the atomic number 84 in the periodic table.
Copper's atomic number is 29.
The element with atomic number 55 on the periodic table is cesium.
Cesium is in period 6, group 1. Its atomic number is 55. Its symbol is Cs.
Cesium is a chemical element located in Group 1 and Period 6 of the periodic table. It is an alkali metal with the symbol Cs and atomic number 55.
Gold is number 79 on the periodic table
the number of helium in the periodic table is 2.
The element with 55 electrons is Caesium (Cs). Caesium is an Alkali Metal in Period 6 of the Periodic Table. It has the atomic number 55. It has 55 electrons in 6 shells with 1 electron in the outer shell.
Elements are arranged on the periodic table based on their atomic number, which is the number of protons in their nucleus. This arrangement groups elements with similar properties in columns called groups or families, while elements in the same period have the same number of electron shells.
Oxygen is number 8 in the periodic table.
Hydrogen is located at number 1 on the Periodic Table.
Atomic number : 4
Fluorine is number 9.
The elements arranged according to their atomic number in the table are called periodic table.