Francium!
Barium (56)
Pb
The combining capacity of an element with another element is called valencyOR The number of electron gained or lost by outermost shell of an element is called its valency
The outermost electron of copper is situated in d block. Therefor copper is a d block element.
atomic number
The element is francium.
7s1 because the definition of valence electrons are the outermost s and p electrons therefore in this case there is only an outermost s electron and therefore the answer is 7s1. NOTE:IT DOES NOT INCLUDE THE D AND THE F ELECTRONS!!!!Other valence configuration examples include;Nitrogen : 2s2 2p3Chlorine : 3s2 2p5Zinc: 4s2Bromine: 4s2 4p5
The electron configuration of francium is [Rn]7s1.
Valence.
Barium (56)
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
false
The element carbon
Pb
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
The electron configuration of francium is [Rn]7s1.
The electron and the outermost electrons' orbital radius.