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Has a 19 atomic number?

Pottasium is a metal element. atomic number of it is 19.


How do you describe the element Na?

Sodium is: an alkali metal, natural chemical element, very reactive, has 1 natural radioactive isotope, atomic number 11, atomic weight 22,98976928(2), solid react violently with water, many uses.


What are the most reactive elements?

That would be the element with the highest atomic number but the lowest number of valence electrons.


What element is the most reactive in the periodic table?

Fluorine is the most reactive non metal.Caesium is most reactive metal in the table.Fluorine has atomic number 9.


Describe what the atomic number af an element refers to?

The number of protons in the nucleus.


Does the atomic number describe the number of protons in one atom of an element?

Yes it does.


Atomic number of fluortine?

Fluorine is a non meta element. Atomic number of it is 9.


What is atomic number 18?

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


What are potassium's atomic symbol and number?

Potassium's atomic symbol is K and its atomic number is 19.


What has a atomic number 20?

An atomic number of 20 corresponds to the element calcium. Calcium is a reactive alkaline earth metal and is essential for various biological processes, particularly in bone health and muscle function.


Has an atomic number of 7?

Could you please re-ask your question in a better manner, because that question does not make sense. Are you trying to ask the atomic mass of the element with the atomic number of 7? or are you just stating that there is an element with the atomic number of 7? because that is not a very good question.


Fluorine is the most reactive element in the halogen family.?

Yes,Fluorine is the most reactive non metal.It has atomic number of 9.It is the lightest Halogen.