science grade nine po this

How to find Atomnumber of protons = atomic number.number of electrons = atomic number.So, if Hydrogen has 1 proton, it also has 1 electron.number of neutrons = mass number - atomic number.(The mass of an atom without neutrons is equal to the number of protons)So,If hydrogen is 1, subtract 1 by the atomic which, 1-1=0How to find ionnumber of protons = atomic number.ElectronCations (positive charge): Subtract the charge from the number of protons. For example, Na+ has 11 protons (sodium) and 10 electrons (11 - 1 = 10).Anions (negative charge): Add the charge to the number of protons. For example, Cl− has 17 protons (chlorine) and 18 electrons (17 + 1 = 18).NeutronTo find the number of neutrons, use the formula:Neutrons=Mass Number−ProtonsThe mass number is typically the rounded atomic mass listed on the periodic table. For example, if an ion of chlorine has a mass number of 35, then:Neutrons = 35 (mass number) - 17 (protons) = 18 neutrons.

Answered by keitoojsmn | 2024-10-20