Calcium has atomic number of 20, an atomic weight of 40.078 and an mass numbers of 40 - 48 inclusive in its isotopes. Atomic number is the count of protons in the nucleus. Mass number is the count of protons plus neutrons.
The question refers to Atomic Mass rather than atomic weight.
Atomic mass normally refers to the mass of a specific isotope of an element and is related to the mass number. Atomic weight ( or relative atomic mass as it is termed by IUPAC) the average mass of naturally occurring isotopes of an element.
The relationship between mass number and atomic mass is defined in terms of the Atomic mass unit which is in simple terms 1/12 of the mass of a 12C atom.
If you need to find out more about the relationship between mass number and and atomic mass you need to read the article "atomic mass unit" in wikipedia.
Iron is a meta element. Atomic mass of it is 54. Atomic number of it is 26.
Calcium: Atomic # is 20, & the atomic mass is 40.078 amu.
The atomic number of calcium is 20. The atomic number stands for the number of protons in an element. It is represented by the letter Z.
Calcium-40: The atomic number of calcium is 20 and the number of neutrons is always the difference between the atomic mass and the atomic number.
The element with an atomic number of 40 is zirconium.
Calcium is a metal element. Atomic mass of it is 40.
Iron is a meta element. Atomic mass of it is 54. Atomic number of it is 26.
Calcium: Atomic # is 20, & the atomic mass is 40.078 amu.
Calcium is a metal element. Atomic mass of it is 40.
The atomic number of calcium is 20. The atomic number stands for the number of protons in an element. It is represented by the letter Z.
Calcium is a metal element. Atomic mass of it is 40.
Calcium-40: The atomic number of calcium is 20 and the number of neutrons is always the difference between the atomic mass and the atomic number.
The element with an atomic number of 40 is zirconium.
Iron is a meta element. Atomic Mass of it is 54. Atomic number of it is 26.
the atomic mass for calcium is 40.078 sr
Calcium is a metal element. Atomic mass of it is 40.
We can find calcium as a non metal element. Atomic number of it is 20.