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Group 2 elements, also known as the alkaline earth metals, have two outer electrons. This is consistent across all elements in this group, which includes beryllium, magnesium, calcium, strontium, barium, and radium. These two outer electrons are responsible for the characteristic properties of these metals, including their reactivity and the formation of divalent cations.

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How many valance electrons are in Be?

It is a Group 2 element, therefore it has two outer-shell electrons. To gain a full outer-shell, it loses two electrons to form a cation (cations are positive ions)


How do you find out how many electrons are in an outer energy level?

You can determine the number of electrons in the outer energy level of an atom by looking at its group number on the periodic table. For main group elements, the group number corresponds to the number of valence electrons. For example, group 1 elements have 1 valence electron, group 2 elements have 2 valence electrons, and so on.


What does the group of the periodic have to do with reactivity?

The table was organized so that elements of similar properties are in the same group. What (partly) determines reactivity is the number of electrons an atom has in it's ground state. . Within the atom electrons are organized in shells. Atoms are stable when they have 8 electrons in their outer shell (for hydrogen and helium it is 2 electrons.) . Elements of: Group 18 have 8 electrons in their outer shells Group 17 have 7 electrons in their outer shells Group 16 have 6 electrons in their outer shells Group 15 have 5 electrons in their outer shells Group 14 have 4 electrons in their outer shells Group 13 have 3 electrons in their outer shells Groups 3-12 have varied number of electrons in their outer shells Group 2 have 2 electrons in their outer shells Group 1 have 1 electron in their outer shells


How many p electrons are in the outer shell of all neutral atoms in group 14 of the periodic table?

Group 14 atoms have 4 p electrons in their outer shell. This group includes elements such as carbon, silicon, germanium, tin, and lead.


How many electrons does tungsten have in its outer shell?

Tungsten has 6 electrons in its outer shell.

Related Questions

How many outer electrons are in Sr?

There are two outer electrons in strontium (Sr) since it belongs to Group 2 of the periodic table. Group 2 elements have 2 electrons in their outer energy level.


How many outer-ring electrons do calcium and oxygen have?

8 all together


How many electrons are in the outer shell of iridium?

Iridium has 2 electrons in its outer shell. It belongs to group 9 in the periodic table, which means it has 9 electrons in its valence shell.


How many electrons in the outer valence shell of calcium?

There are 2 electrons in valence shell of calcium. :-)


How many electrons are in the outer shell of a typical magnesium atom?

A typical magnesium atom has 2 electrons in its outer shell. Magnesium is in Group 2 of the periodic table, so it has 2 electrons in its outermost shell.


How many electrons are found on the outer shell of the noble gas group?

2 or 8


How many valance electrons are in Be?

It is a Group 2 element, therefore it has two outer-shell electrons. To gain a full outer-shell, it loses two electrons to form a cation (cations are positive ions)


How many electrons do beryllium and magnesium have in there outer energy levels?

Beryllium and magnesium have two electrons in their outermost energy level, as do all Group 2 elements.


How do you find out how many electrons are in an outer energy level?

You can determine the number of electrons in the outer energy level of an atom by looking at its group number on the periodic table. For main group elements, the group number corresponds to the number of valence electrons. For example, group 1 elements have 1 valence electron, group 2 elements have 2 valence electrons, and so on.


How many valance electrons are in an atom of magnesium?

An atom of magnesium has 2 valence electrons. Magnesium is in group 2 of the periodic table, so it has 2 electrons in its outer shell.


What does the group of the periodic have to do with reactivity?

The table was organized so that elements of similar properties are in the same group. What (partly) determines reactivity is the number of electrons an atom has in it's ground state. . Within the atom electrons are organized in shells. Atoms are stable when they have 8 electrons in their outer shell (for hydrogen and helium it is 2 electrons.) . Elements of: Group 18 have 8 electrons in their outer shells Group 17 have 7 electrons in their outer shells Group 16 have 6 electrons in their outer shells Group 15 have 5 electrons in their outer shells Group 14 have 4 electrons in their outer shells Group 13 have 3 electrons in their outer shells Groups 3-12 have varied number of electrons in their outer shells Group 2 have 2 electrons in their outer shells Group 1 have 1 electron in their outer shells


What is the pattern of outer shell electrons in a group?

In a group, elements have the same number of outer shell electrons, which corresponds to the group number. For example, elements in Group 1 have 1 outer shell electron, elements in Group 2 have 2 outer shell electrons, and so on. This pattern helps determine the reactivity and chemical properties of elements within the same group.