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Al3+ ion: because Aluminium is (atom)number 13 in the periodic system, so it has 13 protons.
If 10 of them have counter-parting electrons then 3 positive proton charges are left uncompensated (by missing 3 electrons from the outer 'shell' or 3 valency electrons)
So the ion charge is 3+.
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What is the atomic symbol for an element that has 10 neutrons and a mass number of 19?
The atomic number is 9 (19 - 10 = 9) and the symbol for the element is F.
What is the atominc number the atomic mass the number of protons neutrons and electrons in an atom of neon?
Neon has an atomic number of 10 and an atomic mass of about 20. The number of protons in a neon atom is 10, which also corresponds to the number of electrons since neon is electrically neutral. As a noble gas, neon typically has 10 neutrons in its nucleus.
How many neutrons protons and electrons in fluorine?
The atomic number of fluorine is 9. So it has 9 protons and 9 electrons. Number of neutrons depends on the isotope. Number of neutrons = Mass number - Atomic number F-19 has 10 neutrons
How many protons neutrons electrons in atom of fluorine?
An atom of Fluorine has the atomic number 9 and the mass number 19 (rounded up). This means it has 9 electrons, 9 protons and (19-9) 10 neutrons. The proton and electron count are taken from the atomic number. The mass number - the atomic number gives the number of neutrons.
What is the total number of neutrons in the nucleus of a neutral atom that has 19 electrons and da mass number of 39?
The mass number (A) is equal to the total number of protons and neutrons in the nucleus. Since the atom is neutral, the number of protons is equal to the number of electrons. Given that there are 19 electrons, this means there are also 19 protons. Therefore, the total number of neutrons can be calculated as A - number of protons, which is 39 - 19 = 20 neutrons.
