While "Maybe you should open a science book and find out" is a good idea and makes me laugh, it does not answer the question. The answer is Cl-.
35Cl- has 17 protons, 18 neutrons, and 18 electrons. The negative charge indicates an extra electron compared to the number of protons.
Chlorine has: 17 Protons 17 Electrons (in a neutral atom i.e. not an ion) (Isotope Mass Number - 17) is the number of Neutrons.
17 electrons. The number of protons and electrons is always the same.
Protons = 17, electrons = 18There are two isotopes differing in neutron number only :Cl-35 (75%) having 35-17= 18 neutronsCl-37 (25%) having 37-17= 20 neutrons
17 protons and 18 electrons
chlorine ion has 17 protons and 18 electrons.
Chlorine has 17 protons and an atom of Chlorine would have 17 electrons. However a Chloride Ion will have one more electron ie 18 electrons and will be negatively charged.
The atom chlorine usually has 17 protons and 17 electrons. However, the ion Cl-1 indicates that it has gained one electron, so it now has 17 protons and 18 electrons.
Chlorine with 17 protons and a -1 charge has 18 electrons. This is because the number of electrons should equal the number of protons (in this case, 17) plus or minus the charge (in this case, -1).
One atom of chlorine contains 17 protons and 17 electrons. The number of protons determines the element's identity, while the number of electrons balances out the positive charge of the protons to keep the atom electrically neutral.
If an element has 17 protons, it will also have 17 electrons since atoms are electrically neutral. Adding the number of neutrons (18) to the number of protons (17) gives us the mass number of the element, which in this case would be 35.
35Cl17 has 17 protons, 18 neutrons, and 17 electrons.You could have answered this yourself by recalling that the mass number (35) is the sum of the protons and neutrons, that the number of protons and electrons are equal for a non-charged atom, and that the atomic number (17) comes right out of the periodic table.