The elemnt frankium. This is a group 1 metal. It is highly radioactive.
Krypton is the elemnt present in group 18 aand period 4 with atomic number 36 and it is noble gas.
which of these is an extensive property of a substance? is it color, hardness, malleability, or volume
If its a pure elemnt O2, N2, and all of the inert gases Th list is very long for gases that are compounds, for example CO2, CO, all of the alkanes, alkenes and alkynes that are gases.
All atoms of the same element have the same number of protons in their atomic nuclei. The number of protons is the atomic number for that element on the periodic table. The elements are arranged in order of increasing atomic number on the periodic table.
citric acid
That's the chemical formula for Citric acid.
antimony atom
39.948
Nitrogen is a gas.
Yes, it has the atomic # of 20 on the periodic table of elements.
A trace element.
Mercury is liquid metal, elemnt symbol is Hg!
Hydrochloric acid is made out of two elements, hydrogen and chlorine.
Tl is element 81 Thallium, a highly toxic poor metal.
Molar mass is a term applied for molecules, not for atoms.
5th elemnt