80 protons, 80 electrons, 121 neutrons
there are 80 protons in the nucleus of an atom of mercury
Mercury is an element, which means the smallest unit is a single atom.
an atom
Mercury is considerably more massive than palladium.
A Mercury atom has 80 electrons.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
Carbon is an atom.
Mercury is known from many thousands years; a discoverer is not known.
The number of protons is different.
The number of neutrons in an atom of mercury depends on the isotope. The most common mercury isotope has 122. The average number of neutrons in an atom of mercury is about 120.
Inside the Head of... Mr. Atom was created in 1994.
Mercury, as in Hg is an element. It is a metal, in the transition metals, that, when in an ionic bond, holds a +2 charge - making it a cation. Or, if pertaining to astronomy, Mercury is a planet in our solar system. It is the one closest to our sun.