2 electrons there will be only 3 shells these shells are filled with electrons in this order; 2, 8, 8. But as you only have twelve there is no second eight it just has 2 electrons in that shell, lol well anyways the answer is two.
The atomic number is equal to the number of protons and the number of electrons, so 12.
magnesium is a metal element. atomic number of it is 12.
12. Any neutral atom has the same number of electrons as the atomic number of the atom.
Magnesium atoms, atomic number 12, have 2 electrons in their outermost shell.
This element, magnesium, normally has 2 electrons in its outermost shell.
Magnesium is a s block element. We use it for make alloys. It got atomic number of 12.
An atom's atomic number is the number of electrons.
5- the atomic number of boron is 5. Atomic number is the number of protons and this is the same as the number of electrons in the neutral atom.
There are 8 electrons.
If the atom has no charge, then the number of electrons is the same as the number of protons (atomic number).
Of course, 20 electrons.
An atom's atomic number is the number of electrons.
In a neutral atom, the number of electrons is always the same as the atomic number.
5- the atomic number of boron is 5. Atomic number is the number of protons and this is the same as the number of electrons in the neutral atom.
Since the atom is electrically neutral, the number of electrons must be the same as the number of protons in the atom, which is the definition of atomic number. Therefore, there are 9 electrons.
There are 8 electrons.
The number of protons in the nucleus of an atom
Atomic number= No. of electrons in the atom. Atomic no. of selenium=34. Therefore,selenium has 34 electrons in each of its atom.
Finding the number of electrons in an atom is easy. You just have to know the atomic number of the element. The atomic number for Potassium is 19. That means Potassium has 19 electrons.
If the atomic number is 50, the number of electrons is 50.
That depends on the element you are considering. For a neutral atom, the number of electrons = number of protons = atomic number
If the atom has no charge, then the number of electrons is the same as the number of protons (atomic number).
8 electrons