There are 3 valence electrons in a gallium atom.
three, as follows:the 4s orbital is full with 2 electronsthe 4p orbitals contain only 1 electron (of a possible 6)
Selenium
Aluminium and gallium are members of the 13th group of the Mendeleev periodic table of elements.
3 electrons !
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)
3 valence electrons
three, as follows:the 4s orbital is full with 2 electronsthe 4p orbitals contain only 1 electron (of a possible 6)
Gallium is a mono-atomic metal element. So their atoms are atoms, and as many as you have!
3 valence electrons
Gallium possess total inner electrons
Selenium
3 valence electrons
Because they are not on the same row as everthing else.
Aluminium and gallium are members of the 13th group of the Mendeleev periodic table of elements.
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)
Gallium is +3 I had to find out the hard way. I just got it wrong on a chemistry test online. Ga3+ It tends to follow the trends of Al.
Two valence electrons.