One. Sodium is found in Group 1, which is characterized by having one valence electron, so by extension, potassium, rubidium, cesium, and francium also have one valence electron.
Sodium (Na) has one valence electron.
Na has one valence electron i.e. 1 electron in valence(last) shell.
Sodium's atomic number is 11. To be neutral then, it must have 11 protons and 11 electrons. Since sodium is in group 1, it has 1 valence electron.
Indium has 3 valence electrons.
8 valence electrons- 1s22s2p63s2p6
Sodium (Na) has one valence electron.
Na has one valence electron i.e. 1 electron in valence(last) shell.
Sodium's atomic number is 11. To be neutral then, it must have 11 protons and 11 electrons. Since sodium is in group 1, it has 1 valence electron.
Lithium (Li) has 1 valence electron. It is in the same 'family' as Sodium (Na) and Potassium (K)
The NCl3 molecule, like most other stable molecules, exist because they share electrons in such a way as to close out the valence shell. Therefore, although one usually doesn't say so in regards to molecules, NCl3 has 8 valence electrons.
Indium has 3 valence electrons.
8 valence electrons- 1s22s2p63s2p6
Zinc has two valence electrons.
Aluminum has 3 valence electrons.
5 valence electrons.
3 valence electrons
Beryllium has two valence electrons.