Carbon is a non metallic element. Mass number of it is 12.
Sodium is a metal element. Mass number of it is 23.
The atomic number is 6.
Magnesium is a metal element. Atomic mass of it is 24.
The mass number is the number of protons plus neutrons. Magnesium is element number 12, so it has 12 protons. Its mass number with 14 neutrons is 12 + 14 which is 26.
The isotope 12C has the mass number 12.
Carbon is a non metal element. Mass number of it is 12.
Carbon is a non metallic element. Mass number of it is 12.
Carbon is the element with mass 12. It has 6 neutrons.
Carbon is a non metallic element. Mass number of it is 12.
Carbon
Sodium is a metal element. Mass number of it is 23.
12. When a nuclide is (properly) named in the form [element name]-[number], the number is always the mass number.
12. the atomic number of an element is the number of protons in it's nucleus. The mass number is the number of protons+neutrons. Therefore the element has (32-20)12 protons.
Carbon is a metal element. Atomic mass number of it is 12.
Carbon is a non metal element. Mass number of it is 12.
The atomic number is 6.