Ca2+
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
35Cl- has 17 protons, 18 neutrons, and 18 electrons. The negative charge indicates an extra electron compared to the number of protons.
Several can. Perhaps you meant to ask which has 20 protons, in which case the answer is calcium. (Calcium is also one of the elements that can have 20 neutrons, but it's not the only one.)
A chloride ion has 18 electrons. This is one more than the neutral chlorine atom, which has 17 electrons. The one additional electron gained during ionization is responsible for the 1- charge of the ion.
(a) a sodium atom with 11 protons, 11 electrons, and 12 neutrons (b) a calcium atom with 20 protons, 18 electrons, and 20 neutrons (c) a helium atom with 2 protons, 2 electrons, and 2 neutrons (d) an iron atom with 26 protons, 26 electrons, and 30 neutrons
Argon has 18 protons, 18 electrons. The most stable isotope of argon (Ar-40) has 22 neutrons.
18 protons 18 electrons 22 neutrons
18 protons and 22 neutrons in the most commonly occurring isotope argon-40. In argon-36 there are 18 neutrons but this isotope is only present in nature at 0.34%
There are several. However, Chlorine is one. Chlorine-35 has 17 protons, 18 neutrons and 17 electrons in its isotopic atom. However, Chlorine-37 has 17 protons, 20 neutrons and 17 electrons in its isotopic atom.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
The symbolic notation of this element would be ^18O, where 18 is the sum of the protons and neutrons in the nucleus, O represents the element oxygen.
The element with 18 protons is argon (Ar), with atomic number 18. Its mass number is calculated by adding the protons and neutrons, so 18 protons + 20 neutrons = mass number 38 for this particular isotope of argon.
The chemical element of chlorine has 18 nuetrons,17 protons and 17 electrons
Protons=17 Neutrons depend on isotope but most common is 18, and electrons depend on compound however by it self cl has 17 but it steals an electron from other elements to get 18
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.
The element argon has 22 neutrons. It has 18 protons and 18 electrons, giving it an atomic number of 18. The number of neutrons is calculated by subtracting the atomic number from the atomic mass, which is 40 for argon (obtained by rounding the atomic weight to the nearest whole number).
Argon has 18 electrons and protons...Neutrons is 22