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Beryllium has one outer electron shell with two electrons.
The outer shell of calcium has two electrons.
Antimony has 5 valence electrons.
Bromine typically has 7 electrons in its outer shell.
Chromium has two electrons in the outer most shell.
Beryllium has one outer electron shell with two electrons.
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7 electrons are on the outer (valence) shells of all halogens
The outer shell (N=4) of the copper element has 2 electrons.
Hydrogen has only one valence electrons.
they add or loose electrons from the outer most shells
Berkelium has 97 electrons, which means it has 7 electron shells.
The outer shell of calcium has two electrons.
The table was organized so that elements of similar properties are in the same group. What (partly) determines reactivity is the number of electrons an atom has in it's ground state. . Within the atom electrons are organized in shells. Atoms are stable when they have 8 electrons in their outer shell (for hydrogen and helium it is 2 electrons.) . Elements of: Group 18 have 8 electrons in their outer shells Group 17 have 7 electrons in their outer shells Group 16 have 6 electrons in their outer shells Group 15 have 5 electrons in their outer shells Group 14 have 4 electrons in their outer shells Group 13 have 3 electrons in their outer shells Groups 3-12 have varied number of electrons in their outer shells Group 2 have 2 electrons in their outer shells Group 1 have 1 electron in their outer shells
Antimony has 5 valence electrons.
They have 8 electrons on the outermost shell, also known as valence.
Bromine typically has 7 electrons in its outer shell.