B (Boron) has 3 valence electrons; note that it is in group 3A.
Two electrons, oxidation number 4
====================================== My explaination will be Carbon,the non-metal element that contains of 6electrons,2.4 .....the positive charge 4 valenced electrons will share its electron with 2 oxygen atoms that consists of 4 valenced electrons too,in order to achieve stable octet electron arrangement,thus CO2 is formed
Boron has 3 valence electrons.
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
Boron has 3 valence electrons.
Boron has 3 valence electrons.
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B³⁺ (Boron ion with a +3 charge) has 3 fewer electrons than a neutral boron atom. A neutral boron atom has 5 electrons, so B³⁺ has 2 electrons.
Boron (B) has three valence electrons. Since B₂ consists of two boron atoms, the total number of valence electrons in B₂ is 6. Each boron atom contributes its three valence electrons, resulting in a combined total of 6 valence electrons for the molecule.
From one - e.g. Copper - to eight - e.g. Nickel.
i don't the answer
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