6 but i don't know why though but its six coz it came out for my practice gcse test
Vanadium has on the outer shell two electrons.
There is one electron on cobalts outer shell.
Selenium needs two more electrons.
Tungsten has 6 electrons in its outer shell.
2 outer shell electrons
All these elements have six electrons in the outer shell.
Nitrogen has five electrons in its outer shell and bromine has seven in its outer shell.
Boron has three electrons in its outer shell
Vanadium has on the outer shell two electrons.
Selenium needs to gain two electrons to achieve a stable electron configuration. By gaining two electrons, selenium will have a complete outer energy level (valence shell), which is the most stable configuration for an atom.
Calcium has two electrons in the outer shell.
There is one electron on cobalts outer shell.
Selenium needs two more electrons.
4V V-Valence Electrons Valence Electrons-Last electron (which is on the outer shell)
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
Tungsten has 6 electrons in its outer shell.
Chlorine has 7 electrons in its outer shell.