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1s2 2s2 2p63s23p6

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How many electrons are there in the neutral atom which has the ground state outer electron configuration of 4s2?

There are two electrons in the 4s orbital of the neutral atom with the ground state outer electron configuration of 4s2.


What figure represents an electron configuration for a calcium atom whose atomic number is 20?

The electron configuration for a calcium atom with atomic number 20 is 1s2 2s2 2p6 3s2 3p6 4s2. This can be represented using the noble gas shorthand notation as [Ar] 4s2, where [Ar] represents the electron configuration of argon.


What is the electron configuration of a calcium atom whose atomic number is 20?

The electron configuration of a calcium atom (atomic number 20) is: 1s2 2s2 2p6 3s2 3p6 4s2. This configuration represents the distribution of electrons in the various energy levels (shells) around the nucleus of the calcium atom.


What is the electron dot configuration for calcium?

The electron dot configuration for calcium is written as Ca•. This represents the calcium atom with two electrons in its outermost shell.


What is the valence electron configuration for calcium atom?

calcium has the complete electronic configuration: 2, 8, 8 2 and hence has 2 valence electrons.


When a calcium atom loses its valence electrons the ion formed has an electron configuration that is the same as an atom of?

Argon. Calcium has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2, and when it loses its valence electrons (the outermost 4s2 electrons) it has a configuration identical to argon. If you don't know about sublevels, then disregard that. Calcium has a configuration of 2-8-8-2, and when it loses its 2 valence electrons, it has a configuration identical to argon in the ground state. Hope that cleared it up


How many valence electrons are transferred from the calcium atom to iodine in the formatoin of the compound calcium iodide?

In the formation of calcium iodide, one valence electron is transferred from the calcium atom to the iodine atom. Calcium, a metal, loses 2 electrons to achieve a stable electron configuration, while iodine, a nonmetal, gains 1 electron to achieve a stable electron configuration.


To form an ion what does a calcium atom gain or loose?

A calcium atom typically loses two electrons to form a calcium ion with a 2+ charge. The loss of these electrons allows the calcium ion to achieve a stable electron configuration similar to that of a noble gas.


What element's neutral atoms have 20 protons?

it is about the atomic number. Calcium is the element.


Why does not calcium has 10 electron in its 3rd shell?

Because then it would be zinc!Calcium has the electron configuration [Ar] 4s2Zinc has the electron configuration [Ar] 3d10 4s2


About the electron configuration?

Electron configuration for an atom is the distribution of electrons on atomic orbitals.


What must have happened to a calcium atom for it to achieve a noble gas structure?

A calcium atom must lose 2 electrons to achieve a noble gas structure, as it will then have the same electron configuration as argon, a noble gas. This loss of electrons allows the calcium atom to have a full outermost electron shell, giving it greater stability.