Berylium is a non metal element. Atomic number of it is 4.
This would be Potassium, symbolized as "K". The atomic number is the same as the order of the elements on the period table. That is to say, Hydrogen has the atomic number of 1 because it is first, Helium's atomic number is 2, and so on. Potassium is in group one (groups are the columns) and it is in between Chlorine and Bromine.
The atomic number of helium is 2. It has 2 protons in its nucleus, which defines its atomic number.
The element with the lowest atomic number that contains a half-filled d subshell at its ground state is scandium (atomic number 21). The electron configuration of scandium at ground state is [Ar] 3d^1 4s^2, where the 3d subshell is half-filled with one electron.
Ununhexium is the heaviest metal in the periodic table of elements. It is man made however, so it might not count. The heaviest natural metal might be Radium.
Ba, Barium, Atomic #56, is in Group-2 Period-6 of the Periodic Table of the Elements.
Beryllium has the lowest atomic mass in group 2 of the periodic table.
Helium has the atomic number of 2. It is in the group noble gases. It is classified as a non-metallic substance.
Helium has the atomic number of 2. It is in the group noble gases. It is classified as a non-metallic substance.
The lightest element in the group 2 of the periodic table of elements is calcium - with a density of 1,55 g/cm3.
The element with an atomic number of 16 is sulfur. Sulfur has a valency of -2 as it is in group VI.
Radium (atomic no. 88): Group 2 (Alkaline Earth Metals), period 7 of the periodic table of elements.
Zirconium(Zr) has an atomic number of 40. It is in Group 4 and Period 5.
The element with the lowest atomic number that contains 10 p electrons in the ground state is neon. Neon has an atomic number of 10, and in its ground state, it has 2 electrons in the 1s orbital, 2 electrons in the 2s orbital, and 6 electrons in the 2p orbital.
noble gases atomic number 2 chemical symbol He
The atomic number of Barium is 56 on the periodic table
This would be Potassium, symbolized as "K". The atomic number is the same as the order of the elements on the period table. That is to say, Hydrogen has the atomic number of 1 because it is first, Helium's atomic number is 2, and so on. Potassium is in group one (groups are the columns) and it is in between Chlorine and Bromine.
Magnesium is on Group 2 in the periodic tale.It is a group of Alkaline metals.It has atomic number of 12.