The predominant isotope of the element helium has a mass number of 4, and the element may have the same mass, to the two significant digits specified, in atomic mass units.
The element with an atomic number of 40 is zirconium.
Argon is a non metal element. Atomic mass of it is 39.94.
Argon is a non metal element. Mass number of it is 40.
Gallium is a non metal element. Atomic mass of it is 69.723.
Magnesium is a meta element. Atomic mass of it is 24.
Calcium is a metal element. Atomic mass of it is 40.
The element with an atomic number of 40 is zirconium.
Argon is a non metal element. Atomic mass of it is 40.
Argon is a non meta element. Atomic mass of it is 40.
Argon is a non meta element. Atomic mass of it is 40.
Calcium is a metal element. Atomic mass of it is 40.
The element with an approximate atomic mass of 40 amu is Calcium (Ca).
Argon is a non metal element. Atomic mass of it is 39.94.
Calcium is a metal element. Atomic mass of it is 40.
Argon is a non metal element. Mass number of it is 40.
Argon is a non metal element. Atomic Mass of it is 40.
Gallium is a non metal element. Atomic mass of it is 69.723.