Thorium has 90 protons. So for a neutral atom, there has to be 90 electrons. 230 is the total number of nucleons. ie 90 protons and 140 neutrons.
Thorium 230 (and also all the isotopes of thorium) has 90 electrons.
20 electrons
42 electrons
there are 10 electrons.
how many valence electrons does chalcogens have
Two electrons from each element are shared; the total is four 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