if you are referring to the isotope number and the hyphen isn't making the six negative rather than just connecting it to the word lithium, then the Atomic Mass would be 6, if you are meaning to show the negative 6 as the ion, let me first start off by saying that a negative 6 ion would not affect the atomic mass on an atom because the atomic mass is not influenced by electrons, which is what forms ions, this is because an electron is very small, and about 1/1,800 the weight of an atom, it is approximate, but that is the general area
lithium has an atomic number of 3 in all its isotopes.
Lithium is a meta element. Atomic number of it is 3.
3 electrons
4 electrons, 2 valence electrons
100 electrons
there are 17 electrons in chlorine. and 7 of them are valence electrons.
Electrons are always negative. There is no neutral electrons.
Nitrogen has 7 electrons
8 electrons
4 electrons, 2 valence electrons
16 electrons
6 electrons
4 electrons.
97 electrons
20 electrons
100 electrons
15 total electrons, 3 valence electrons
Electrons are always negative. There is no neutral electrons.
there are 17 electrons in chlorine. and 7 of them are valence electrons.
Nitrogen has 7 electrons