There are ONLY 2 valence electrons in Co, valence electrons come only from the s orbital and the p orbital, giving only 2 for Cobalt.
Cobalt has 9 valence electrons.
valency of cobalt is 2
2
the outer shell of cobalt contains 9 electrons.
To find the number of non-valence electrons in an atom, subtract the number of valence electrons (often equal to the group number for main group elements) from the total number of electrons in the atom. Valence electrons are the electrons in the outermost energy level. The remaining electrons are the non-valence electrons located in the inner energy levels.
The neutral atom of cobalt has 27 electrons. The number can vary up or down depending on the chemistry of the sample of cobalt. A link is provided to the Wikipedia article on the element cobalt.
The group number in the periodic table tells you the number of valence electrons for main group elements. The group number is the same as the number of valence electrons, except for transition metals.
Gallium (Ga) has 3 valence electrons.
There are ONLY 2 valence electrons in Co, valence electrons come only from the s orbital and the p orbital, giving only 2 for Cobalt.
There are 2 valence electrons in cobalt.
3
the outer shell of cobalt contains 9 electrons.
The neutral atom of cobalt has 27 electrons. The number can vary up or down depending on the chemistry of the sample of cobalt. A link is provided to the Wikipedia article on the element cobalt.
Take the atomic number then subtract the amount of valence electrons. Example: Number of non valence (inner) electrons in Sulfur: 16 (atomic number) - 6 (valence electrons) = 10 (valence or inner electrons)
Two valence electrons.
Gallium (Ga) has 3 valence electrons.
To find the number of non-valence electrons in an atom, subtract the number of valence electrons (often equal to the group number for main group elements) from the total number of electrons in the atom. Valence electrons are the electrons in the outermost energy level. The remaining electrons are the non-valence electrons located in the inner energy levels.
the number of valence electrons is the number group on the table its on
The group number in the periodic table tells you the number of valence electrons for main group elements. The group number is the same as the number of valence electrons, except for transition metals.
Group 2 metals have 2 valence electrons. In fact, the number of valence electrons of elements can be deduced from the group number (e.g. group VII elements have 7 valence electrons).