How many valence electrons are shared, gained, or lost by each atom of the six compounds?
• N2 • CCl4 • SiO2
• AlCl3 • CaCl2 • LiBr
none of this makes any sense to me ;-;
so does that mean that Li will lose 1 electron and Br will gain 1 electron
http://quatr.us/chemistry/atoms/covalent.htm
same Lyssa
how does this apply to my everyday life day life
Yes, that leaves them both with full shells. This has to be in your book!
or google ionic bond and covalent bond
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.
http://chem.libretexts.org/Core/Physical_and_Theoretical_Chemistry/Chemical_Bonding/Fundamentals_of_Chemical_Bonding/Ionic_Bonds
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