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The number of neutrons in an isotope of argon that has a mass number of 40 and an atomic number of 18?
Wiki User
∙ 13y ago
argon is element 18, and so has 18 protons. argon 40 has a mass of 40, so subtracting 18 protons gives you 22. Thus, there are 22 neutrons
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThere are 18 protons and 22 neutrons in Ar-40 isotope. Hence its atomic weight is 40. (Atomic weight = Number of protons + number of neutrons = 18 + 22 = 40)
Wiki User
∙ 12y agoThe protons would be 40 and to get the number of neutrons you have to take the Atomic Mass and subtract 40.
Wiki User
∙ 9y agoElement 18 is argon, an inert gas that is present in the atmosphere at about 0.9%.
Wiki User
∙ 8y agoThe superscript is 40: the number of nucleons (neutrons + protons) and the subscript is 18: the atomic number or the number of protons.
Wiki User
∙ 12y ago18 protons 22 neutrons
Wiki User
∙ 13y ago22
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How many nutrons does argon have?
There are 3 Isotopes with the following mass numbers: Argon 36 Argon 38 Argon 40 Argon has an atomic number of 18 (it therefore has 18 protons in its nucleus and 18 electrons flying round it). To get the number of neutrons one subtracts the atomic number from the mass number. This means that some Argon atoms have 18 neutrons, some 20 neutrons and some 22 neutrons the isotope with 22 neutrons is the most common and forms 99.6% of all Argon.
How many neutrons are in argon?
The number of neutrons is 22(for the most stable isotope of argon, Ar-40)because you subtract the atomic mass from the atomic number then estimate!The most common isotope of Argon, 40Ar, (comprising about 99.6% of all naturally occurring Argon) has 22 neutrons 18 electrons 18 protons.Argon has 24 known isotopes ranging from 30Ar (with 12 neutrons) to 53Ar (with 35 neutrons).Of those only three are stable: 36Ar, 38Ar, and 40Ar.
What element has 18 protons?
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons
What isotopes contain 18 protons and 22 neutrons?
Only one isotope has a given number of protons andneutrons. In this case it is Argon-40
How many protons neutrons and electrons are present in one atom argon?
There is more than one isotope of argon (as there are of all elements) but the most common isotope is the one that has an atomic weight of 36; it has 18 protons, 18 neutrons, and 18 electrons. The same number for all three types of particles.
What does the number 40 in argon-40 represent?
It is the mass number, i.e., the total number of protons and neutrons in argon and is ofter used to calculate the number of neutrons present. As the atomic number (or the number of protons) for argon is 18, there will be 22 neutrons in Argon-40 isotope.
What is the nucleus of argon?
The nucleus contains 18 protons and neutrons. The number of neutrons depends on the isotope of argon. Ar-20, the most common isotope of argon has 22 neutrons.
How many nutrons does argon have?
There are 3 Isotopes with the following mass numbers: Argon 36 Argon 38 Argon 40 Argon has an atomic number of 18 (it therefore has 18 protons in its nucleus and 18 electrons flying round it). To get the number of neutrons one subtracts the atomic number from the mass number. This means that some Argon atoms have 18 neutrons, some 20 neutrons and some 22 neutrons the isotope with 22 neutrons is the most common and forms 99.6% of all Argon.
How many neutrons are in argon?
The number of neutrons is 22(for the most stable isotope of argon, Ar-40)because you subtract the atomic mass from the atomic number then estimate!The most common isotope of Argon, 40Ar, (comprising about 99.6% of all naturally occurring Argon) has 22 neutrons 18 electrons 18 protons.Argon has 24 known isotopes ranging from 30Ar (with 12 neutrons) to 53Ar (with 35 neutrons).Of those only three are stable: 36Ar, 38Ar, and 40Ar.
What is the atomic mass of argon-36?
An isotope is an atom with a different number of neutrons. The number of neutrons is the only particle that changes. Electrons will stay the same. Therefore, the number of electrons is the same as the atomic number, which is 18.
What is the relationship between two element X and Y whose atomic numbers are 18 and 20 but their mass number remains same as 40?
There is no relationship other than having the same mass number. Element X has an atomic number of 18, which makes it the noble gas argon. The particular isotope is argon-40, which means that the atomic nuclei of this isotope of argon contain 18 protons and 22 neutrons. Element Y has an atomic number of 20, which makes it the alkaline earth metal calcium. The particular isotope is calcium-40, which means the atomic nuclei of this isotope of calcium contain 20 protons and 20 neutrons.
An atom has 18 protons 18 electrons and 20 neutrons. This atom has?
This atoms has an atomic number of 18 and an atomic mass of 38.
What argon isotope has 22 neutrons?
neutrons = 22 (for the most stable isotope of argon, Ar-40)
What element has 18 protons?
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons
What isotopes contain 18 protons and 22 neutrons?
Only one isotope has a given number of protons andneutrons. In this case it is Argon-40
How many protons neutrons and electrons are present in one atom argon?
There is more than one isotope of argon (as there are of all elements) but the most common isotope is the one that has an atomic weight of 36; it has 18 protons, 18 neutrons, and 18 electrons. The same number for all three types of particles.
How many protons nutrons and electrons does argon have?
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%
