Silicon.
Copper is a metal element. atomic number of it is 29.
Suren the answer be chlorine? Atomic chlorine?
Magnesium is a meta element. Atomic mass of it is 24.
Do the atomic mass of each element/ compound which makes up air divided by 100 and then times by the percentage that the element exists in air. This should give you the mass that each element/ compound contributes to the atomic mass of air. Add them all together to get the overall atomic mass of air. (I calculated this and it came out at 25.6 3sf )
The element is Iodine (I). It has an atomic mass of about 126.9.
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has
the Atomic Mass
Atomic mass of copper is 63. 546amu where amu is Atomic mass unit
Nickel is a meta element. Atomic mass of it is 59.
Antimony is a meta element. Atomic mass of it is 122.
Iron is a meta element. Atomic mass of it is 54. Atomic number of it is 26.
Iron is a meta element. Atomic mass of it is 56.