18
Iodine is a non metal element. Atomic number of it is 53.
The atomic number of strontium (Sr) is 38.The atomic weight of Sr is 87.62 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Bismuth is an element of the periodic table, with the atomic number 83 and the chemical symbol Bi.
Po is the symbol for polonium. It was discovered by polish Chemist and Physicist Marie Curie in 1898, and she named the element in honor of her country. It has an atomic number and atomic mass of 84 and 209 u respectively.
radioactive, artificial, metal, atomic number 101
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.
Fluorine is the most reactive non metal.Caesium is most reactive metal in the table.Fluorine has atomic number 9.
That would be the element with the highest atomic number but the lowest number of valence electrons.
Vanadium is a chemical element with the symbol V and an atomic number of 23. It is moderately reactive and only becomes more reactive with hot acids.
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.
The number of protons in the nucleus.
Yes it does.
Atomic Number is 47; Atomic Mass is 137.3; Element Name is Barium; Classified as the Alkaline Earth Metals.
Yes,Fluorine is the most reactive non metal.It has atomic number of 9.It is the lightest Halogen.
Yes,Fluorine is the most reactive non metal.It has atomic number of 9.It is the lightest Halogen.
Yes,Fluorine is the most reactive non metal.It has atomic number of 9.It is the lightest Halogen.
Argon (atomic number 18) is the noble gas that is nearest to calcium (atomic number 20)