EASTER HYMM(There Is a Green Hill Far Away )

164 - There Is a Green Hill Far Away

1
There is a green hill far away,
Without a city wall,
Where the dear Lord was crucified,
Who died to save us all.

2
We may not know, we cannot tell,
What pains He had to bear,
But we believe it was for us
He hung and suffered there.

3
He died that we might be forgiven,
He died to make us good,
That we might go at last to heaven,
Saved by His precious blood.

4
There was no other good enough
To pay the price of sin;
He only could unlock the gate
Of heaven, and let us in.

5
O dearly, dearly has He loved!
And we must love Him too,
And trust in His redeeming blood,
And try His works to do.

SCIENTISTS DISCOVER FOUR NEW ELEMENT

Four elements are soon to be added to the periodic table, finally completing the seventh row making every science textbook out of date according to education giant Pearson, the CNBC has reported.

A spokesman for Pearson said, “We regularly review our course materials and textbooks to ensure they are up to date, and any changes that need to be made will be done at the appropriate moment to ensure least disruption to schools and students.”

The International Union of Pure and Applied Chemistry (IUPAC) on December 30, verified the addition of the elements 113, 115, 117 and 118 to the table’s seventh row making it complete.

“IUPAC has now initiated the process of formalizing names and symbols for these elements temporarily named as ununtrium, (Uut or element 113), ununpentium (Uup, element 115), ununseptium (Uus, element 117), and ununoctium (Uuo, element 118),” Professor Jan Reedijk, President of the Inorganic Chemistry Division of IUPAC .

Furthermore, the chemistry community is eager to see its most cherished table finally being completed down to the seventh row. Beside, the proposed names and symbols will be checked by the Inorganic Chemistry Division of IUPAC for consistency, translatability into other languages, possible prior historic use for other cases, etc.

New elements can be named after a mythological concept, a mineral, a place or country, a property or a scientist.

After Divisional acceptance, the names and two-letter symbols will be presented for public review for five months, before the highest body of IUPAC, the Council, will make a final decision on the names of these new chemical elements and their two-letter symbols and their introduction into the Periodic Table of the Elements.

The statement released by IUPAC also quoted the President, Dr. Mark C. Cesa, as saying, “As the global organization that provides objective scientific expertise and
develops the essential tools for the application and communication of chemical knowledge for the benefit of humankind, the International Union of Pure and Applied Chemistry is pleased and honored to make this announcement concerning elements 113, 115, 117, and 118 and the completion of the seventh row of the periodic table of the elements.

“we are excited about these new elements, and we thank the dedicated scientists who discovered them for their painstaking effort, as well the members of the IUPAC/ IUPAC Joint Working Party for completing their essential and critically important task,” he added.

SOURCES
PUNCH NEWSPAPER
PEARSON PRENTICE
IUPAC NEWS

RELATED POST
PERIODIC TABLE 1
PERIODIC TABLE 2
INTRODUCTION TO CHEMISTRY
BASICS OF CHEMISTRY

NATURE OF MATTER

WEEK 2:

PERIODIC TABLE

WEEK: 1

The arrangement of elements in the Periodic table is very important in chemistry. Dmitri Mendeleev, a Russian scientist was the first to develop Periodic Table in 1869. He arranged the elements in order of increasing relative atomic mass.

He observed that elements with similar properties kept recurring at regular intervals or periods.
His Periodic Table had many gaps.
He predicted that there were undiscovered elements which could fill the gaps.
He also predicted the properties of the elements.

 

The discovery of the electronic structure of atoms however later revealed that elements vary in their properties according to their atomic number and not their relative atomic mass. This is the basis of the modern periodic law.

 

The modern Periodic Law states that the properties of the elements are a periodic function of their atomic numbers.

 

 

Features of the modern Periodic Table

 

It is divided into 8 vertical columns called Groups and 7 horizontal rows called periods.

 

GROUPS:

1. They are numbered from 0 to 7.
2. They constitute of elements of similar chemical properties.
3. Elements in the same group have the same number of electron in the outermost shell of their atoms.
4. The transition elements occupy the gap between Group 2 and 3.
5. For Groups I,II,III,IV and 0, the oxidation state of the elements is the same as the Group number.
6. Groups V, VI and VII, main oxidation state is eight minus the group number. 
7. The transition elements show variable oxidation states.CLICK HERE TO CONTINUE

PERIODS:

1. They are numbered from 1 to 7.
2. Elements in the same period have the same number of electron shells which correspond to the Period.
3. The number of valence electrons of the elements in the same Period increases progressively by one across the Period from left to right.
4. The elements of the lanthanide and actinide series are among the Periods 6 and 7 respectively.
5. These elements are known as the inner transition elements CLICK HERE TO CONTINUE

INTRODUCTION TO CHEMISTRY

WEEK: ONE

Chemistry is a branch of pure science which deals with the compositions, properties and uses of matter.

CAREERS IN CHEMISTRY 

There are many career paths a person who study chemistry can choose from. They include:

 

1.      Chemical engineering: chemical engineers apply the knowledge of chemistry, physics and Mathematics to the processes that convert raw materials to useful products.

2.      Consumer products chemistry: consumer products chemists produce the materials that we use in our homes and everyday life e.g. soap, shampoo, toothpaste, etc.

3.      Water chemistry: the chemists in this field seek to improve the quality of water. They are very important in the production of portable water.

4.      Green chemistry: those in this field produce environmentally friendly alternatives to products that pollute the environment.

5.      Forensic chemistry: these chemists use various analytical techniques in the investigation of crime. They test the credibility of various chemical products and processes

6.      Health services ( Medical chemistry): pharmacists, biochemists, chemists, nutritionists, dieticians, doctors, nurse, etc are all knowledgeable in chemistry. CLICK HERE TO CONTINUE