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Helium (He) and Be2+ ion (not beryllium element) have the same number of valence electrons (two). But their properties are different as they differ in the number of protons (2 for helium, 4 for beryllium) and hence they differ in ther properties.

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What is beryllium number of valence electrons?

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


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Valence electrons are responsible for chemical boding.


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Beryllium has two valence electrons.


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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.


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The valence level of beryllium is 2. This means that in its neutral state, beryllium has 2 valence electrons.


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Beryllium and calcium have similar chemical properties because they are both in Group 2 of the periodic table, which means they have the same number of valence electrons. This leads to similar reactivity and the ability to form similar types of chemical bonds. Additionally, they both have a tendency to lose two electrons to achieve a stable electron configuration.


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