Helium
The fourth lightest element on the periodic table is beryllium, with an atomic number of 4.
Chlorine is the element in the halogen family located in period 3 of the periodic table.
The element in period 4, group 7 of the periodic table is Manganese (Mn).
The last element in each period is a noble element. It is non-reactive.
No, Hydrogen is lighter than Helium. However, Helium is the 2nd lightest element with an atomic number of 2.
The fourth lightest element on the periodic table is beryllium, with an atomic number of 4.
Hydrogen is the lightest element, with an atomic number of 1. Its low atomic mass and simple structure make it the lightest element in the periodic table.
Hydrogen
The atomic number of the Periodic Table element Period is 92.
Caesium is a Period 6 element.
The period of an element in the periodic table refers to its horizontal row. Each period represents the number of electron shells an element's atoms have.
the Atomic number on Periodic Table is the identity of an element in the table , it gives the indications about Group, period and Block of elements it also predicts the chemical and physical properties of the element.
Chlorine is the element in the halogen family located in period 3 of the periodic table.
The element's location on the periodic table indicates its period, which corresponds to the number of electron shells in its atomic structure.
The first element in the fourth period of the Periodic Table is potassium (K).
The period of an element in the periodic table indicates the energy level of its electrons. Each row in the periodic table represents a different period, with elements in the same period having the same number of electron shells.
The element in period 4, group 7 of the periodic table is Manganese (Mn).