Questions from General Chemistry

Q: Where are the valence electrons found in an atom, and why

Where are the valence electrons found in an atom, and why are these particular electrons most important to the chemical properties of the atom?

Q: Write the complete orbital diagram for each of the following elements,

Write the complete orbital diagram for each of the following elements, using boxes to represent orbitals and arrows to represent electrons. a. helium, Z = 2 b. neon, Z = 10 c. krypton, Z = 36 d. x...

Q: What are some of the physical properties that distinguish the metallic elements

What are some of the physical properties that distinguish the metallic elements from the nonmetals? Are these properties absolute, or do some nonmetallic elements exhibit some metallic properties (and...

Q: Give some similarities that exist among the elements of Group 1.

Give some similarities that exist among the elements of Group 1.

Q: Where are the most nonmetallic elements located on the periodic table?

Where are the most nonmetallic elements located on the periodic table? Why do these elements pull electrons from metallic elements so effectively during a reaction?

Q: The “Chemistry in Focus” segment Fireworks discusses some of the

The “Chemistry in Focus” segment Fireworks discusses some of the chemicals that give rise to the colors of fireworks. How do these colors support the existence of quantized energy levels in atoms?

Q: In each of the following groups, which element is least reactive

In each of the following groups, which element is least reactive? a. Group 1 b. Group 7 c. Group 2 d. Group 6

Q: Arrange the following sets of elements in order of increasing atomic size

Arrange the following sets of elements in order of increasing atomic size. a. Sn, Xe, Rb, Sr b. Rn, He, Xe, Kr c. Pb, Ba, Cs, At

Q: Use the average atomic masses given inside the front cover of this

Use the average atomic masses given inside the front cover of this book to calculate the mass in grams of each of the following samples. a. 0.251 mole of lithium b. 1.51 moles of aluminum c. 8.75 *...

Q: An unknown element is a nonmetal and has a valence-electron

An unknown element is a nonmetal and has a valence-electron configuration of ns2np4. a. How many valence electrons does this element have? b. Possible identities for this element include which of th...