VÀNG TỰA HƯỚNG DƯƠNG

Vườn Quan Âm, chùa Quang Nghiêm, Stockton, CA - Photo:BXK

VÀNG TỰA HƯỚNG DƯƠNG

     Kỷ niệm ngày thăm Ôn Minh Đạt

Vàng thu trời lành lạnh

Lá trên cành vẫn xanh

Thiền môn cõi tinh anh

Thăm Thầy ngày thanh tịnh

Chỉ khi tâm yên tĩnh

Phản chiếu bản chất mình

Nhận thức được tánh linh

Phật vừa cười không tiếng.

THU

Vàng Thu Màu Nhớ - Photography - Uyên Nguyên

Nhìn những hình ảnh đầy nghệ thuật của anh bạn Uyên Nguyên trong Vàng Thu Màu Nhớ album, thật phục tài nghệ nhiếp ảnh của anh.  Vẫn là mây, là lá, là vạt nắng ban mai, nhưng với những người giầu tình cảm, tâm tư, và sáng tạo, mọi sự trở nên nghệ thuật và hoàn thiện hơn.  Xin mượn bài thơ rất cũ để cùng hoài niệm với bạn Uyên Nguyên.

                    THU

Tĩnh mịch trời thu sao lành lạnh

Ngồi tựa vai kề đã mấy canh

Trăng mờ huyền ảo bên dòng suối

Người đẹp bên mình ngỡ trong tranh

 

Tôi vuốt tóc em đến ngang lưng

Thì thầm khẽ bảo tóc em mềm

Nhìn đôi môi mọng màu phượng thắm

Rạo rực trong tôi... một mối tình

 

Trời thu thu lại trở về thu

Hình dáng năm xưa bỗng mịt mù

Tóc xưa như một làn mây trắng

Tình mãi như là những lá thu.

Autumn, 1998

NHƯ LÀ

Tranh: Ánh Mắt Mùa Thu -  Xuân Thi

NHƯ LÀ

  Tặng chị XT

Chị con người trung trực

Bản lĩnh và rất hiền

Đôi mắt đẹp như tiên

Nhưng có khi mắt cỡ

Luôn từ tâm giúp đỡ

Kẻ nghèo khó tật quyền

Chị đa tài lại siêng

Nhan sắc và hiếu thảo

Dáng thon thon hoàn hảo

Tựa Khánh Hà mê ly

Chị thanh thản Xuân Thi

Đong đầy tấm lòng thiện

Ở chị luôn biểu hiện

Hoan hỷ và buông tha

Tham sân si tránh xa

Chơn như y Diệu Thiện

THIỆN MINH - An Eternal Guiding-light

The late Most Venerable Thich Thien Minh - from Hoavouu.com

For Vietnamese version, click here - Đọc tiếng Việt ở đây.

THIỆN MINH - An Eternal Guiding-light

  In the memorial of 35th passing of the late Most Venerable Thich Thien Minh

The late most venerable was one of the Zen pillars of Vietnamese Buddhism

His vows were to liberate suffering of all beings with his wisdom, courage and compassion

He was a symbol of the national heroism with extraordinary leadership talents

He was from the village of Bich Khe, Trieu Phong, Quang Tri

In 1933, he became a novice monk at the age of 12 years old.

And after many hard years of studying and practicing the teachings of Buddha,

At the age of 27, he became the president of Da Lat Buddhist Association and a Dharma teacher

He was an exceptional monk, high-regards with senior leadership ranking within the Buddhist Revival movement.

He helped build and strengthen the infrastructure of the Unified Buddhist Church of Vietnam from Southern providences to the Highlands.

He then established of many Buddhist schools and Buddhist Bodhi academy of Nha Trang

As well as founded many Vietnamese Buddhist Associations (GDPT)

His teachings transform many generations of Vietnamese youth to dedicate their lifetime for the greater good.

The venerable fought for religious equality and social justice by non-violent means

He was the symbol of wisdom, conscious, courage, sacrifice, and peace

He was a resilient leader, indomitable and intelligent

He held many positions from Director General for Youth

To the Acting President of the UBCV’s Institute for the Dissemination of the Dharma.

He traveled and shared Dharma from East to West

His endless works and efforts were for the welfare of all Vietnamese people, Dharma, and for the country of Vietnam.

The venerable was in and out of jail in three different governments

And eventually passed away mysteriously in a harsh condition of the Communist prison

On October 17, 1978

In the state of shocking, touching, loving and respecting of a great honorable Master

He was the symbol of Bodhisattvas in modern Vietnam Buddhist era

A great frontier, a compassionated Buddhist teacher

He was a "White cloud floating in the vast sky..."*

"Like the moon shining upon Mount Lanka

Like the perfume rising from the Prajna lotus " **

* A Dedicated Poem by Zen Master Thich Nhat Hanh to venerable Thich Thien Minh

**The poem of king Ly Thai Tong praised Zen Master Tỳ-Ni-Đà-Lưu-Chi (translated by Vo Dinh Mai)

TIẾNG CHUÔNG CHÙA PHƯỚC SA

Cảnh Chùa Phước Sa - ảnh Y-Minh Nguyen

TIẾNG CHUÔNG CHÙA PHƯỚC SA

Trăng rằm thanh tịnh quá

Lung linh với ngàn sao

Như Phước Sa thuở nào

Trong câu kinh nhịp mỏ

Cùng trầm hương theo gió

Tiếng chuông chùa ngân xa

Sâu lắng như thiền ca

Gọi người mau tỉnh thức.

Chapter 5 - Electron configuration and orbital diagram worksheets

Worksheet #1: Atomic Spectra

Answer the following questions using your Unit 3 notes.

1.  How did Bohr expand on Rutherford’s model of the atom?

2.  How many electrons can each of the following orbitals hold?

            a. 2s = ________                    d. 6d = ________

            b. 3p = ________                   e. 4p = ________

           

            c. 5f = _________                   f.  3d = ________

3.  How many “p” orbitals can there be in any energy level?  ____________________________

4.  What is the maximum number of electrons in the 3^rd principle energy level?   ____________

5.  How many orbitals are in each of the following sublevels??

            a. 4p sublevel  ____________            c. 4f sublevel   ____________

            b. 3d sublevel  ____________            d. 2s sublevel  ____________

 

Worksheet #2: Orbital Diagrams

1.  Write the electron configurations for Na, Ga and Ag.

2. Which element has the following orbital diagram?

1s

2s

2p

3s

3p

4s

3d

element (answer)

a

F

b

Zn

c

As

                       

3.  Using arrows, show how the following orbitals will fill with electrons.

Electron Configuration

1s

2s

2p

3s

3p

4s

3d

Mg

1s22s22p63s2

Cl

1s22s22p63s23p5

Si

1s22s22p63s23p2

Ti

1s22s22p63s23p64s23d2

Worksheet #3: Electron Configurations

Answer the following questions using your Unit 3 notes.

1. Write the complete electron configuration for each atom on the blank line. 

1. Lithium                                                                                                          
2. Fluorine                                                                                                          
3. Carbon                                                                                                                       
4. Argon                                                                                                             
5. Sulfur                                                                                                             
6. Nickel                                                                                                             
7. Rubidium                                                                                           
8. Xeon                                                                                                  

2.   What elements are represented by each of the following electron configurations?

            a.  1s² 2s² 2p⁵                         c.  1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰   4p⁶5s² 4d¹⁰ 5p⁴                     

            b.  1s² 2s² 2p⁶ 3s² 3p⁶ 4s²                   d.  1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵                

3. a.  What are valence electrons?  ____________________________________________________

2. Explain how an atom’s valence electron configuration determines its place on the periodic table.

3. List the number of valence electrons for the following atoms:

  

potassium =                  magnesium =                      carbon =                 nitrogen =               

4.  Place the following orbitals in order of increasing energy:

            1s, 3s, 4s, 6s, 3d, 4f, 3p, 7s, 5d, 5p                ____________________________

5. What two elements are exceptions to the way we normally write electron configurations? Write the expected and the actual configuration of each. What rules are followed?  What rules are violated?

Worksheet #4: Periodic Table

Answer the following questions using your Unit 3 notes.

1.     Identify each element as a metal, metalloid, or nonmetal.

a.     fluorine                                                        d.  phosphorus                                      

b.     germanium                                                   e.  lithium                                           

c.     zinc                                                               f.  oxygen                                           

2.     a.  Circle the transition metals below.

            magnesium                  titanium           chromium            mercury            aluminum

b.  Which block (s, p, d, or f) are the transition metals found?               

3.     Give two examples of elements for each category.

a.  Noble gases                                                                                               

b.  Halogens                                                                                                   

c.  Alkali metals                                                                                             

d.  Alkaline earth metals                                                                                

4.     Explain why the s-block of the periodic table is two groups wide, the p-block is six groups wide, and the d-block is ten groups wide.

5.     Why do the elements potassium and sodium have similar chemical and physical properties?

6.  Identify the element that:

            a.  Contains a full 3^rd energy level                         c.  Outer energy level is 4s²                           

            b.  Contains 3 electrons in the 2p level                  d.  Contains 5 electrons in the 4d level         

Worksheet #4 CONTINUED…..

Answer the following questions using your Unit 3 notes.

 7.  Write the electron configuration for the element fitting each of the following descriptions.

            a.  The metal in Group 15                                                                                          

            b.  The halogen in period 3                                                                                        

            c.  The alkali metal in period 2                                                                                   

            d.  The transition metal that is liquid at room temperature                                       

                       

                       

FLASHBACK  TIME J!!

1.      Write the electron configuration for the following elements:

Cesium = _________________________________________________

Potassium = ________________________________________________

Uranium = __________________________________________________

2.  Give an example of the following:

            a. Homogenous mixture  = _____________________________________

            b. Heterogeneous mixture = ___________________________________

            c. Element =  ____________________

            d. Compound = __________________

3.  Name the scientist who contributed the following to the discovery of the atom:

            a. Discovered the nucleus       ______________________________

            b. Used the cathode ray tube   ______________________________

            c. Discovered protons              ______________________________

4.  How many protons, neutrons, and electrons does the element cobalt have?

Worksheet # 5: Check What You Know

Answer the following questions using your Unit 3 notes.

1. How many orbitals are in the following sublevels?

                  a)  3p sublevel =  _____           d) 3d sublevel =  _____

                  b)  2s sublevel =  _____           e) 4f sublevel =  _____

                  c)  4p sublevel =  _____

2. Write the full electron configuration for each atom.

                  a) Phosphorus = _______________________________

                  b) Gold  = _______________________________

                  c) Iodine = _______________________________

3. Give the symbol and names of the elements that correspond to these configurations of an atom. Where does this element belong in the period table (e.g. noble gas, metalloid, etc..)

                  a) 1s²2s²2p⁶3s¹ = ________________________

                  b) 1s²2s²2p⁶3s²3p⁶4s²3d⁸ = _________________________

                  c) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁴ = ______________________________

4.  Distinguish between the ground state and the excited state of an atom.

5. Draw the orbital diagram for the element Manganese.