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How many valence electrons are shared, gained, or lost by each atom of the six compounds?

• N2 • CCl4 • SiO2
• AlCl3 • CaCl2 • LiBr

I bet you can do LiBr without our help and you can probably do the others as well. You know that Li will be +1 (loses electron) and Br will be -1(gains electron)

Google valences of each or look in your book

so does that mean that Li will lose 1 electron and Br will gain 1 electron

Yes, that leaves them both with full shells. This has to be in your book!

or google ionic bond and covalent bond

http://quatr.us/chemistry/atoms/covalent.htm

http://chem.libretexts.org/Core/Physical_and_Theoretical_Chemistry/Chemical_Bonding/Fundamentals_of_Chemical_Bonding/Ionic_Bonds

so Cl gain 7 electrons right

would N2 have to gain 3 electrons to have a full shell?

oh wait will Cl gain 1 electron to have a full shell?

Of course Cl will gain 1 e to have a full shell which give it a -1 charge.However, if combined with C it will share electrons with Cl to form four covalent bonds. SiO2 is covalent as is N2.

none of this makes any sense to me ;-;

same Lyssa

how does this apply to my everyday life day life

Did you know?

Did you know that the number of valence electrons shared, gained, or lost by each atom can determine the properties and reactivity of a compound? In N2, each nitrogen atom shares three valence electrons, creating a strong triple bond. In CCl4, the carbon atom shares four valence electrons, while each chlorine atom gains one electron, resulting in a stable molecule. SiO2 consists of silicon sharing four valence electrons and oxygen gaining two electrons, giving rise to a network of covalent bonds in quartz. In AlCl3, each chlorine atom gains one electron while aluminum loses three, leading to the formation of a strong ionic compound. Similarly, in CaCl2, each chlorine atom gains one electron while calcium loses two, resulting in ionic bonding. Lastly, in LiBr, lithium loses one valence electron, whereas bromine gains one, forming an ionic bond. Understanding these electron interactions helps us comprehend the diverse nature of compounds and their behavior.