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Calcium's atomic number is 20. It therefore has 20 protons and 20 electrons. Since calcium is a group 2 element, 2 of those electrons are valence electrons.
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∙ 13y ago
Wiki User
∙ 12y ago2
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How many the valence electron of xenon?
There are no valence electrons.
How many valence electrons are in the sodium family?
one valence electron
Hydrogen has how many valence electrons?
One. A hydrogen atom contains only one electron, and it is a valence electron.
What element has 2 valence electrons and 4 energey levels?
Calcium has 2 valence electrons and 4 electron shells. It is represented by the chemical symbol Ca.
How many electron dots does sodium have?
The valence shell of sodium has one electron.
How many valence electron does Ca lose or gain to attain noble-gas electron configuration?
Calcium loses two electrons to obtain a noble-gas electron configuration.
How many valence electron does alkali metals have?
Alkali metals have one valence electron.
How many the valence electron of xenon?
There are no valence electrons.
How many valence electron does an excited potassium electron have?
one electron
How many valence electrons does S2- have?
8 valence electron
How many electron valence does beryllium have?
The valence of beryllium is two.
How many valence electrons does sliver have?
Silver has one valence electron.
How many valence electron does lanthanum have?
Lanthanum has 2 valence electrons.
How Many Valence Electron Does selenium?
Selenium has 6 valence electrons
How many valence electron does selenium has?
Six valence electrons
How many valence electrons are in the sodium family?
one valence electron
How many valence electons does francium have?
Francium has one valence electron.
