The Foundations of Chemistry

5-17 Electron Configurations 219 Row 3.The next element beyond neon is sodium. Here we begin to add electrons to the third shell ...

Orbital Notation 3 d 4 s 4 p Simplified Notation 19 K[Ar] __ h [Ar] 4s 1 20 Ca [Ar] __ hg [Ar] 4s 2 21 Sc[Ar]__ h hg [Ar] 3d ...

Electrons are indistinguishable. We have numbered them 1, 2, 3, and so on as an aid to counting them. 5-17 Electron Configuratio ...

222 CHAPTER 5: The Structure of Atoms (n2,
1) and therefore also the second energy level. Electrons 11 through 17 fill the 3s ...

We can extend the information in Figure 5-31 to indicate the electron configurations that are represented by each group(column) ...

EXAMPLE 5-10 Electron Configurations Use Table 5-5 to determine the electron configurations of (a) magnesium, Mg; (b) germanium, ...

dorbital block, so we know that the 3dorbitals are completely filled. The electron configura- tion of Ge is [Ar] 4s^23 d^104 p^2 ...

226 CHAPTER 5: The Structure of Atoms Cathode ray The beam of electrons going from the negative electrode toward the positive el ...

Exercises 227 Exercises Particles and the Nuclear Atom *001.List the three fundamental particles of matter, and indi- cate the m ...

228 CHAPTER 5: The Structure of Atoms 0 *19.Prior to 1962, the atomic weight scale was based on the assignment of an atomic weig ...

Exercises 229 *035.Calculate the atomic weight of silicon using the follow- ing data for the percent natural abundance and mass ...

23 0CHAPTER 5: The Structure of Atoms Atomic Spectra and the Bohr Theory *053.(a) Distinguish between an atomic emission spectru ...

Exercises 231 *070.An electron is in one of the 3porbitals. What are the pos- sible values of the quantum numbers n,
, m
, and ...

232 CHAPTER 5: The Structure of Atoms *098.Find the total number of s, p,and delectrons in each of the following: (a) Si; (b) Ar ...

Exercises 233 122.When compounds of barium are heated in a flame, green light of wavelength 554 nm is emitted. How much energy i ...

...

6 Chemical Periodicity ...

OUTLINE 6-1 More About the Periodic Table Periodic Properties of the Elements 6-2 Atomic Radii 6-3 Ionization Energy 6-4 Electro ...

configurations of elements in the A groups are entirely predictable from their positions in the periodic table. We also noted, h ...

6-1 More About the Periodic Table 237 CC The Development of Science HEMISTRY IN USE The Periodic Table The periodic table is one ...