tale of the melon city

• Andrew Manson has just begun his medical practice as an assistant to Dr. Edward Page in the small Welsh mining town of Blaenelly
• Joe Morgan, a burly driller, is waiting for Andrew outside his surgery and urgently needs his assistance for his wife, Susan Morgan
• Andrew and Joe set out for Number 12 Blaina Terrace where Susan Morgan is in labor
• Inside the house, Mrs. Morgan's mother and an elderly midwife are waiting beside Susan, who is in labor in a small, poorly furnished bedroom lit only by an oil lamp
• Andrew decides to stay and assist with the delivery, despite feeling dull and listless
• Andrew reassures Mrs. Morgan's mother that he will not leave and goes downstairs to drink tea
• Andrew decides to remain until the delivery is over, feeling a sense of duty and a queer lethargy of spirit
• As Andrew waits, he reflects on various marriages he knows of, feeling resentful and confused about the concept of marriage
• The child is born lifeless as the first streaks of dawn appear, causing Andrew horror and a shiver of realization
• Andrew faces a dilemma between trying to resuscitate the child and attending to Susan Morgan, who is in a critical state
• Andrew chooses to focus on saving Susan's life, injecting medicine to restore her strength and leaving the child in the care of the nurse
• Andrew saves a newborn baby that was initially limp and white, indicating asphyxia pallida
• Andrew quickly performs a special method of respiration on the baby
• He uses hot and cold water basins to help revive the baby
• After half an hour of effort, the baby finally shows signs of life by gasping and crying
• The baby's skin turns from white to pink, and its limbs become more rigid
• The room is left in disarray with blankets, towels, basins, and soiled instruments scattered around
• The midwife initially believes the baby is stillborn, but Andrew persists in his efforts to revive it
• The mother is still under anaesthetic on the bed, and the old woman is praying against the wall
• Andrew feels weak and dazed after successfully reviving the baby
• He leaves the room to compose himself, drinks water in the scullery, and reassures Joe that both the mother and baby are alright
• Andrew reflects on the experience, feeling a sense of accomplishment and real impact in his work as a physician
• Chemistry exam
• The Periodic Table is the most important concept in chemistry, providing a succinct organization of the whole of chemistry
• The chemical elements display trends and lie together in families on the Periodic Table
• An awareness of the Periodic Table is essential to understand how the world is built up from the fundamental building blocks of chemistry
• • Compare the reactivity of elements and correlate it with their occurrence in nature
  • Explain the relationship between ionization enthalpy and metallic character
  • Use scientific vocabulary to communicate ideas related to important properties of atoms such as atomic/ionic radii, ionization enthalpy, electron gain enthalpy, electronegativity, valence of elements
• The Periodic Law states that the properties of elements are a periodic function of their atomic weights
• Dmitri Mendeleev and Lothar Meyer are credited with the development of the Modern Periodic Table
• After studying the Classification of Elements and Periodicity in Properties, students will be able to:

  • Appreciate how grouping elements according to their properties led to the development of the Periodic Table
  • Understand the Periodic Law
  • Understand the significance of atomic number and electronic configuration for periodic classification
  • Name elements with Z > 100 according to IUPAC nomenclature
  • Classify elements into s, p, d, f blocks and learn their main characteristics
  • Recognize periodic trends in physical and chemical properties of elements
• The historical development of the Periodic Table and the Modern Periodic Law will be studied in this unit
• Mendeleev arranged elements in horizontal rows and vertical columns based on increasing atomic weights, placing elements with similar properties in the same vertical column or group
• Mendeleev predicted the existence of gallium and germanium, which were discovered later, based on their properties fitting into his classification scheme
• The Periodic Table is based on the periodic variation in electronic configurations, which determine the physical and chemical properties of elements and their compounds
• The Modern Periodic Law states that the physical and chemical properties of elements are periodic functions of their atomic numbers
• According to IUPAC, groups are numbered from 1 to 18, and there are seven periods in the Periodic Table
• The "long form" of the Periodic Table is the most convenient and widely used version, with periods and groups representing horizontal rows and vertical columns respectively
• Elements with similar outer electronic configurations are arranged in vertical columns called groups or families
• The period number corresponds to the highest principal quantum number (n) of the elements in the period
• The first period contains 2 elements, with subsequent periods containing 8, 8, 18, 18, and 32 elements respectively