Atoms and Atomic Structure

Element 3 lithium has one valence electron and element 4 beryllium has two valence electrons Element 5 boron has how many valence electrons?


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2010-08-11 05:26:56
2010-08-11 05:26:56

Boron has 3 valence electrons.
Boron has 3 valence electrons.

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Most elements have two 2s electrons, as well as many other electrons. However, if you mean what element has two 2s valence electrons, that element would be beryllium, whose electron configuration is 1s22s2.

The element with atomic number 4 is Beryllium (Be). Beryllium is the first element in the Group 2 - Alkaline Earth Metals family. It has 4 electron sin two shells, with two electrons in each shell.

as such there is no element in nature which does not have electron.

Beryllium is element #4 with 2 valence electrons; nitrogen is element #7 with 5 valence electrons (needing 3 to have a stable configuration). Beryllium nitride: Be3N2

The element with the chemical symbol Be is Beryllium. Beryllium is in Group 2 of the Periodic Table and, so, is an Alkaline Earth Metal. It has 2 electron shells, with 2 electrons in the outer shell and 2 in the inner shell.

Beryllium-9: 4 protons and electrons, 5 neutrons

Beryllium will lose electrons. It loses two valence electrons. Beryllium is an element that has an atomic number of 4, and is a classified as a metal.

Electron is a fundamental particle, not a chemical element.

By the amount of electrons it has, the number of electron fields, and what the element is.

Beryllium - Be - is a natural chemical element.

[He] 2S2 is the noble gas electron configuration for beryllium.

Yes, beryllium (Be) is a natural chemical element.

You think probable to carbon.The electron configuration of carbon is [He]2s2.2p2.

no beryllium aluminium silicate is not an element. It is one of the beryllium compounds.

Sr has the above electron configuration. Sr has 38 electrons.

Beryllium like every other element excluding hydrogen has 2 electrons in its first shell.

Every known element has electrons. The one with the least is Hydrogen, which only has one electron and one proton.

The element Chlorine has 17 protons and 17 electrons in its stable form. The electron configuration is 2,8,7.

Beryllium. The number of protons is the atomic number. So the element with 4 protons has the atomic number 4, which is beryllium.

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