Neon has 10 neutrons
Neon
For an neutral element that has the same number of electrons and protons, the element with 11 electrons is Na, sodium.
Isotopes are atoms of the same element with different numbers of neutrons, but the same number of protons.
Isotopes.
It's close, but an atom is made of a nucleus and electrons. The nucleus is made of protons and neutrons. The number of protons equals the atomic number of the element, and the atomic mass is the number of protons plus neutrons.
Atoms of Magnesium have 12 electrons. Elements in the periodic table with a neutral charge must all have a number of electrons equal to the number of protons in the nucleus. Since Magnesium has an atomic number of 12, and the atomic number is also known as the PROTON number, then it must also have 12 electrons to balance out the charge. Magnesium has an atomic mass of about 24 - the other 12 units of mass being made up of neutrons.
isotope
''CA" (CAlCiUM)
Atoms of all elements can have neutrons in them. Only the element hydrogen has an isotope whose atoms do not contain neutrons, but all other isotopes of hydrogen have neutrons in them. In the heavier elements the number of neutrons always exceeds the number of protons in the atom.
15
For an neutral element that has the same number of electrons and protons, the element with 11 electrons is Na, sodium.
Isotopes are atoms of the same element with different numbers of neutrons, but the same number of protons.
The Atomic Mass is 17
The number of electrons corresponds to the "index" number of the element in the periodic table. The 8th element is Oxygen, which has 8 atoms when neutral. That didnt answer the question. ANSWER Neon has 8 electrons :)
Isotopes.
The atomic number of an element _is_ the number of electrons in one of its atoms. Indeed, a sample of an element can be defined as any combination of atoms with the same atomic number. Oxygen is the element with atomic number 8. It is the element whose atoms have 8 electrons in their neutral state (and 8 protons).
Magnesium atoms have 12 electrons.
isotopes :D