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Q: What is the element with an atomic number 18?
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What is atomic number 18?

Argon is a non meta element. Atomic number of it is 18.


What is the element argon atomic number?

Argon is a gas element. atomic number of it is 18.


What element has the atomic number of 18?

Argon.


Which element has the atomic number 18?

Argon.


What element has 18 protons 20 nuetrons and 18 electrons What is its atomic number?

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.


What is the mass number and atomic number for argon?

Argon is a non metal element. Atomic number of it is 18.


What Element With 18 Neutrons And Mass Number Of 35 Is?

Atomic number = Number of protons = 35 - 18 = 17.So the element is chlorine.


What chemical element has the atomic number 18?

Argon (Ar)


What is the name of the element with 18 as the atomic number and 17 as the mass number?

Argon


What are the physical properties of the element argon?

Argon has atomic number 18 and is the third element in group 18 of the periodic table


What are the other elements that have the atomic number of 18 like argon?

There are no such elements: the atomic number is a unique property of each particular element and is not shared with any other element.


Why is argon before potassium on the modern periodic table?

Because of its atomic number. The atomic number is a reference to how many protons an element has. Argons atomic number is 18, so it has 18 protons. Potassiums is 19.