science help?

Question

i dont understand:
draw dot diagrams for one Li and one Cl atom.
write the symbols for these ions that show their overall charge.
write the formula for the compound formed.

if you know the answer, please explain it so, i can do the other problems as well

Answer 1

In order to draw a dot diagram, you need to know the number of valence electrons associated with each element. Li has one valence electron and Cl has seven valence electrons. The website below will show you how exactly to draw the diagrams, and what the ions look like. The compound formed from Li and Cl is lithium chloride, LiCl

Hope this helps!

Answer 2

The dot diagram for Li ATOM is just one dot. Li • The dot diagram for Li ion (cation) is just Li+. This means the electron has been taken away so there is no dot in Li+.

The dot diagram for Cl ATOM is seven dots around. This is hard to do here in this page. Cl ( you can fill in the dots). The dot diagram for the Cl anion is with all 8 (octet) electrons around it. or Cl- and 8 electrons around

Please note that atoms and ions of the same element are not the same. So their electronic configurations and dot formulas will not be same also.

The formula is Lithium Chloride or LiCl
with the 8 electrons around the Cl and sharing two with Li. This means to the right side of Li in the dot formula you have

„
: Cl :
”

I am sure you can do better with the dots.

Answer 3

A lithium atom has a single valence electron, butwhen you form a lithium ion, that electron is removed, so a lithium ion's dot diagram is just Li+ (with no dots).

A chlorine atom has 7 valence electrons, but when you form a chloride ion, you add another electron so it has 8. It's dot diagram should look something like:

.. -
:Cl:
..

Answer 4

Visit the link below. It explains everythingabout Dot Diagrams you'll ever what to know. Good Luck!

Answer 5

Li has 3 electrons in which two is in its 1st orbit [1s(2)] & last one is in the 2nd orbit [2s(1)].so it has 1 electron in its valence shell which can take part in chemical reactions.

On the other hand Cl has 17 electrons......in 1st orbit it has 2 electrons [1s(2)].8 electrons in its 2nd orbit [2s(2)2p(6)] & 7 electrons in its 3rd orbit [3s(2)3p(5)3d(0)].so it has 7 electron in its valence shell which can take part in chemical reactions.

Now elements wants to complete their octate by chemical reaction.
so Li wants to release its one valence electron to get same number of electrons as He has[2]. so Li becomes Li+.
Cl takes this electron & not has 8 electron in its valence shell[7+1].so its octate is completed 7 it got number of electron same to the Ar[18].Hence Cl becomes Cl-.

So there is an attraction between positive Li[LI+] & negative Cl[Cl-] & hence they form electro-valent bond .

-e
Li. -------------> Li+


. +e
:Cl: ---------------> Cl-
..

Li+..Cl-
electro valent bonding

Answer 6

awesome, good luck.