Calcium has 20 protons and 20 electrons. When we fill in the first 20 orbitals, we get the configuration of 1s2 2s2 2p6 3s2 3p6 4s2. Since 4 is the outermost shell in this configuration, calcium has 2 valence electrons.
Calcium has 2 valence electrons, like all Group 2 elements.
nitrogen has 5 valence electrons. carbon has 4 valence electrons.
A barium atom has two valence electrons.
A calcium atom typically has 20 protons, 20 electrons, and approximately 20 neutrons.
One calcium atom will form an ionic bond with one sulfur atom, since calcium will donate its two valence electrons to sulfur in order to achieve a stable electron configuration.
Calcium is a non metal element. There are 20 electrons in a single atom.
2
Calcium carbonate has 16 valence electrons. Calcium contributes 2 valence electrons, while each oxygen atom contributes 6 valence electrons.
2
Boron has 3 valence electrons, gold has 1 valence electron, krypton has 8 valence electrons, and calcium has 2 valence electrons. Valence electrons are the electrons in the outermost energy level of an atom.
Calcium has two valence electrons.
Calcium has 2 valence electrons, like all Group 2 elements.
Calcium has two valence electrons.
What kind of question is that lol I don't even know that and I just studyed that last semester lol
nitrogen has 5 valence electrons. carbon has 4 valence electrons.
Depends on what you mean by number of electrons. Calcium has 20 electrons and oxygen has 8 electrons for a total of 28 electrons. But if you mean how many VALENCE electrons, then the calcium has 2 and the O has 6 for a total of 8 valence electrons.
A barium atom has two valence electrons.