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For example calcium and magnesium.

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9y ago

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What is beryllium number of valence electrons?

The beryllium atom has 4 electrons and the valence is 2.


What element has 2 valence electrons and 4 protons?

The element with 2 valence electrons and 4 protons is beryllium. Beryllium has an atomic number of 4, indicating it has 4 protons in its nucleus. The valence electrons are the outermost electrons in an atom, and beryllium has 2 valence electrons in its outer energy level.


The number of valence electrons in group 2 elements is?

Group 2 elements have 2 valence electrons. This is because they are located in group 2 of the periodic table, which corresponds to the number of valence electrons in the group. Examples of group 2 elements include beryllium, magnesium, calcium, strontium, barium, and radium.


What is the number of valence electrons in beryllium?

Beryllium has a 2s2 number of valence electrons


What is the number of valence electron for all the elements in periodic table group 2A 2?

Elements in group 2A of the periodic table have two valence electrons. This group includes elements such as beryllium, magnesium, calcium, strontium, barium, and radium.


What is the maximum number of valence electrons that an atom can have excluding hydrogen helium and beryllium?

The maximum number of valence electrons that an atom can have is 7, as seen in elements such as fluorine, chlorine, and bromine. These elements are in group 7A of the periodic table, also known as the halogens.


Where do elements have the same number in valence electrons?

Elements in the same group have the same number of valence electrons.


What is the number of valence electrons for group 2 elements?

Group 2 metals have 2 valence electrons. In fact, the number of valence electrons of elements can be deduced from the group number (e.g. group VII elements have 7 valence electrons).


How many electrons are in the outer level of beryllium?

In an electrically neutral atom, the number of electrons is the same as the number of protons. Since the number of protons is the atomic number of an atom, and Beryllium has an atomic number of 4, this means that Beryllium has 4 protons in its nucleus. As mentioned previously, if the atom is electrically neutral, then Beryllium will also has 4 electrons.


The elements within a group have a similar number of?

Elements in the same group have the same number of valence electrons. These are the outer-shell electrons that react with other elements.


Where are elements with the same number of valence electrons?

Elements with the same number of valence electrons are found in the same group or column of the periodic table. This is because elements in the same group have the same number of valence electrons, which determines their chemical properties. For example, all elements in group 1 have 1 valence electron.


How many number of valance electrons in beryllium?

I might be wrong but: I know that beryllium has two electrons total and the first ring can only fit two electrons so the number of valance electrons is most likely two. Please correct me if I'm wrong.