Question

How many electrons are typically involved in bonding for group 1, group 2 and group 3 elements?

Answer 1

Here, we are required to determine how many electrons are typically involved in bonding for group 1, group 2 and group 3 elements and How many electrons are typically involved in bonding for group 6, 7 and 8 elements.

• For group 1: Only one electron.
• For group 2: Only two electrons
• For group 3: Only 3 electrons
• For group 6: Only 2 electrons
• Fir group 7: Only 1 electron
• For group 8: No electron

The Valence electrons are the electrons which are available for bonding and chemical reactions in elements.

The Valence electrons are the electrons which are available for bonding and chemical reactions in elements.However, not all Valence electrons are actively involved in bonding. This is evident in the group 7(halogens) elements, although they have 7 Valence electrons, only one is actively involved in bonding.

• For group 1 elements: They have only one Valence electron and it is actively involved in bonding (ionic bonding)

• For group 2 elements: They have only two Valence electron and both are actively involved in bonding (ionic bonding)

• For group 3 elements: They have only three Valence electrons and all three are typically used for bonding.

• For group 6 elements: They have 6 Valence electrons and are electronegative. As such, they only need to receive 2 electrons from an electropositive element and consequently, they only contribute two electrons into the bonding. As such, only 2 electrons are typically used for bonding.

• For group 7: They have 7 Valence electrons and are highly electronegative. As such, they only need to receive 1 electrons from an electropositive element and consequently, they only contribute 1 electrons into the bonding. As such, only 1 electrons are typically used for bonding.

• For group 8: They have a full octet configuration and are unreactive. Therefore, no electron is typically used for bonding.

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