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Entry Task: November 9 th Friday. Provide the formula and name for the following: MgP and Lithium nitride TURN IN ENTRY TASK SHEET. Agenda:. Notes on Transitional elements In-class practice on part of homework Finish the rest of sheet for homework. Transitional Elements.

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entry task november 9 th friday

Entry Task: November 9thFriday

Provide the formula and name for the following:

MgP and Lithium nitride

TURN IN ENTRY TASK SHEET

agenda
Agenda:
  • Notes on Transitional elements
  • In-class practice on part of homework
  • Finish the rest of sheet for homework
transitional elements

Transitional Elements

USE THE BACKSIDE OF

BINARY T-METAL SHEET

slide4

H

Li

C

Be

Mg

Na

Si

Fe

Cu

Zn

K

Mn

Co

Ge

Ni

Ca

Sr

Rb

Ag

Cd

Ba

Au

Hg

Pb

Cs

Cations

When these atoms become ions they lose electrons thus becoming a positive charge.

+1

+2

+3

+4

B

Transitional Elements

Al

Sn

Transitional elements can change charges. To know the charges we use Roman numerals.

Iron (III) ion is Fe+3

Copper (I) ion is Cu+1

Lead (IV) ion is Pb+4

slide5

Cations

Transitional elements can change charges.

How do you know the charges?

We use Roman numeral to denote the charge.

+1 charge is ( I )

+4 charge is ( IV )

+3 charge is ( III )

+2 charge is ( II )

+5 charge is ( V )

Iron (III) ion

Fe+3

Copper (I) ion

Cu+1

Lead (IV) ion

Pb+4

Tin (IV) ion

Sn+4

slide6

Provide the symbol and charges for the following

Calcium

Ca +2

Potassium

K +1

Iron II

Fe +2

Gold II

Au +2

Magnesium

Mg +2

Aluminum

Al +3

Pb+3

Tin IV

Sn +4

Lead III

some exceptions
Some exceptions

There are three transition elements which do not require a Roman Numeral because they have single definite charges. These are

Zinc – Zn+2

Cadmium – Cd+2

Silver – Ag+1

You need to remember the charges for these.

some exceptions1
Some exceptions

Mercury’s has a twist

Mercury I – Hg21+

Mercury II – Hg+2

You need to remember this as well 

let s practice
Let’s practice!

1. ZnCl2

31. Barium hydride

2. MgF2

32. Nickel (II) iodide

3. FeO

33. Iron (II) sulfide

4. CoCl2

34. Chromium (III) chloride

5. VCl5

Chlorine is -1 (2 ) = -2. Cation= +2Zinc chloride

Ba = +2 H= -1 = BaH2

Fluorine is -1 (2 ) = -2. Cation= +2 Magnesium fluoride

Ni = +2 I= -1 = NiI2

Oxygen is -2 (1 ) = -2. Cation= +2Iron II oxide

Fe = +2 S= -2 = FeS

Chlorine is -1 (2 ) = -2. Cation= +2Cobalt II chloride

Cr = +3 Cl= -1= CrCl3

Chlorine is -1 (5 ) = -5. Cation= +5Vanadium V chloride