what is the boron number in an atomic number/
protons
It is 4.0026 : the atomic mass can be a fraction.
The atomic mass of an isotope of an element is the mass of the nucleons (neutrons + protons) in an atom of that isotope. This is nearly, though not exactly, equal to the number of nucleons, and so is nearly a whole number.The main cause for the atomic mass being fractional is that most elements have numerous isotopes, each with a different number of neutrons and so a different atomic mass. The atomic mass for an element is the average of the atomic masses of all its isotopes, weighted together in the proportion of the isotopes' abundance on earth. It is this weighting together that results in the numbers being fractional.
Take percent abundance times atomic mass for each isotope then add all up for average atomic mass.
No.
Boron is a non meta element. Atomic number of it is 5.
Boron is a non metal element. Atomic number of it is 5.
There is only one atomic number for any element. For boron, it is 5.
Boron is a non metal element. Atomic number of it is 35.
Atomic Number:5 Symbol:B
The atomic number of Boron is 5.
The atomic number of boron is 5, one less than the atomic number of the atom in the block to its immediate right.
The atomic number of boron is 5, and since the atomic number of an element is the number of protons in the nuclei of its atoms, boron atoms have 5 protons in their nuclei.
An atom's atomic number tells us the number of protons it has. Boron's atomic number is 5. Thus, boron has 5 protons.
Atomic mass number of boron(B) - 11
Boron - B - Group IIIThe atomic number is 5.The mass number is 11.
Atomic Number = 5 Atomic Mass = 10.811