Name: 命名離子和共價化合物 (Naming Ionic and Covalent Compounds)
Uploaded: 2021-01-14T06:22:44.000Z
Duration: 8 min 15 s
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Welcome to another tutor sure provided by the Educational Support Services

Department up the high carbon Community College in snacks fell Pennsylvania

which is just outside a valid tell these videos review key learnings for the

science courses provided herein tell Tracy

completion member that the Educational Support Services Department does provide

walk into during five days a week this video review the

basic naming conventions that we use for ion I can call failing compounds in

just two to let you know that I E um will review how to deal with transition

metals and I am compounds on the next slide

in this video and that for polyatomic ions in acids I'll have a separate video

that you can look up and use but if we start with basic Diana compounds

how to compounds are a metal in a non-metal

combined together and the naming convention

stated its full name and as a second term

plus you landed with I D E and I'll show you

the first example a sodium chloride you name the metal

is chlorine hand you take the route of chlorine which is Clore celo

when you move on to the next example you'll see lithium

sulfide you notice the metal you still just say the

the full metal name lithium you do not have to

and then he had the ides a sulfide and then

the last example I have aluminum oxide again you just

state the metal you don't worry about the subscript

you do not worry about the subscript you um

you represent an oxygen here this the route is all wax

um welcome into name mean hun I am account pounds

that's basically because you can look at the to charges

%uh home-based charges of aluminum in oxygen

you out you know aluminum oxide must be al2o3

see only way it can be formed up so you don't need to show

any representation of the subscripts now we go to

Kovan its are non metals with another non-metal

to prefix here in green that's how you address the

in the elements so like for down down here in SF's

6 you gonna deal with the 6-foot-2 in some way with a prefix prefix

as to be on either term the first others second

and the the next one down here you'll see a when the two in a 5-4 gonna have

deal with those prefix though such scripts

oxide we have no: because the subscripts here are both won

hmmm you do not need to use a prefix model

for cough and a compound you don't need to use

model Hudson if you don't see a term it's implied that its model so

you not the same model nitrogen it's just nitrogen

with the the room with the iDEN date so it's oxide

you don't have to say mono now you will obviously come across some exceptions

yeah I'm sure you'll deal with your science classes see all which is carbon

%uh a long time use it's not really following the namee

a convention but it's just been you so much

over the years that everybody how uses it that term

now so that is one exception a and there are few others occasionally you may come

again because sulfurous a single element there

you going to use a prefix hexafluoride represents six

salt sulphur hexafluoride in our final example here for Oracle valances

and 2005 here you need to use a prefix a dying nitrogen

you wrote when you're heading there suffix if I D

um if we have a transition metal in arianna count pound

transition metals um most of them are some other

and so you need to address that in the name me

so for transition metals you you name them that'll

but you also have to give some indication up with the oxidation state