The element with atomic number 18 is Argon. It is a noble gas with the symbol Ar.
Argon is a gas element. atomic number of it is 18.
Argon is a non meta element. Atomic number of it is 18.
The atomic number of am element is determined by its number of either electrons or protons, hence here, it is 18. Therefore the element must be argon which the isotope has mass number 38, as there are 18 protons and 20 neutrons.
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).
Atomic number = Number of protons = 35 - 18 = 17.So the element is chlorine.
Argon is a gas element. atomic number of it is 18.
Argon is a non meta element. Atomic number of it is 18.
Argon.
Argon.
The atomic number of am element is determined by its number of either electrons or protons, hence here, it is 18. Therefore the element must be argon which the isotope has mass number 38, as there are 18 protons and 20 neutrons.
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).
Atomic number = Number of protons = 35 - 18 = 17.So the element is chlorine.
Argon (Ar)
Argon
No stable isotope of an element has mass no 18, although unstable isotopes of fluorine and oxygen have mass no 18, 8O18 and 9F18
There are no such elements: the atomic number is a unique property of each particular element and is not shared with any other element.
The element is Argon. Its configuration is 2 8 8.