The average atomic mass of an element is the average of the atomic masses of its isotopes (that is a weighted average). You have to take into account the abundance of each isotope when they do your averaging.
What is weighted average atomic number
The average atomic mass is the ratio of the average mass of one atom of an element to one twelfth of the mass of an atom of carbon-12. It is, the mass of an atom of the substance, rescaled so that carbon-12 would have a mass of 12.
Magnesium is a meta element. Atomic mass of it is 24.
Chlorine is a non meta element. Atomic mass of it is 35.
The atomic mass of scandium is 44.9559 AMU (atomic mass unit)
Scandium is a metal element. Atomic mass of it is 44.95.
The atomic mass of scandium (Sc) is 44.955908 u (unified atomic mass units).
Scandium is lighter than vanadium. Scandium has an atomic mass of 21. the atomic mass of vanadium is 51.9.
Atomic mass of scandium: 44,955 912
Scandium is a metal element. Atomic mass of it is 44.95.
The relative atomic masses are:calcium: 40.078 scandium: 44.956 titanium: 47.867
The element Scandium (Sc) has 21 protons in its nucleus, which can be determined using its atomic number. To find the number of neutrons, we can subtract the atomic number from the atomic mass: Scandium has an atomic mass of approximately 45. This gives us 45 - 21 = 24 neutrons in a Scandium atom.
To get the atomic mass of scandium, you would look up the atomic mass of each isotope of scandium and calculate the weighted average based on their abundance in nature. The atomic mass typically listed on the periodic table is an average atomic mass based on the abundance of each isotope.
Number of neutrons = mass number - atomic number = 49 - 21 = 28
The atomic mass of an atom is the sum of its protons and neutrons. In this case, the atom would have an atomic mass of 47 (23 protons + 24 neutrons). Electrons do not significantly contribute to the atomic mass of an atom.
The element with a mass number of 45 is scandium. It has an atomic number of 21, which means it has 21 protons in its nucleus.