What is the atomic number for Carbon?

Module Two Assignment

Name:

Elements

Instructions: Using the periodic table, answer the following questions about elements.

  1. What is the atomic number for Carbon?
  2. What is the chemical symbol for Tungsten?
  3. What is the atomic number for strontium?
  4. What is the atomic number for mercury?
  5. What element has the symbol Ag?
  6. What element has the symbol Nb?
  7. What is the atomic number for gallium?

Atoms and Ions

Instructions: Answer the following questions regarding ions losing and gaining electrons.

  1. How many electrons does chlorine need to gain to become an ion? Will it become a positively charged cation or a negatively charged anion?
  2. How many electrons must nitrogen gain to become like its closest noble gas, Neon?
  3. What are valence electrons?

Instructions: Answer the following questions about isotopes.

  • Given that the mass number for carbon is 13, how many protons and how many neutrons does the isotope contain?
  • Hydrogen has two naturally occurring isotopes: hydrogen-1 and hydrogen-2. What is the symbol for each of these hydrogen isotopes?
  • How many neutrons are contained in nitrogen-15?
  • How many protons does calcium-43 contain? 

Atomic Mass

Instructions:

  1. Find the atomic mass unit of Sulfur-32 with a mass of 31.972 and percent abundance 94.99%, Sulfur-33 with a mass of 32.971 and percent abundance 0.75%, Sulfur-34 with a mass of 33.968 and percent abundance 4.25%, and Sulfur-36 with a mass of 35.967 and percent abundance 0.01%.
  • Find the atomic mass unit of Silicon-28, Silicon-29, Silicon-30 with masses of 27.977, 28.976, 29.974, respectively. The percent abundance of the silicon isotopes is 92.2%, 4.7% and 3.1%, respectively.

Periodic Table and Its Trends

Instructions: Answer the following questions regarding the periodic table, the Bohr Model, and electron configuration. 

  1. Explain periodic table.
  2. What is the Bohr Model? Provide a summary in your own words.
  3. What is the electron configuration of calcium?
  4. What is the electron configuration of oxygen?
  5. How many valence electrons does magnesium (Mg) have?

Molecules and Compounds

Instructions: Find the mass ratios and atomic ratios of the following compounds.

  1. CI2O7
  2. SbF5
  3. NH3
  4. BaI2
  5. S2Cl2
  6. OsO4

Instructions: Write the formula for each of the following ionic compounds.

  • Sodium chloride
  • Potassium chloride
  • Ammonium chloride
  • Sodium hydroxide
  • Calcium Nitrate

Instructions: Name the following ionic compounds.

  1. MgCl2
  2. CaCl2
  3. CuSO4
  4. Al2O3

Instructions: Name the following molecular compounds.

  1. Cl2O7
  2. PCI5
  3. SiI4
  4. NI3

Instructions: Write the formulas for the following molecular compounds.

  • Sulfur hexafluoride
  • Sulfur dioxide
  • Dinitrogen trioxide
  • Carbon tetrafluoride
find the cost of your paper

In your report, write a brief introduction explaining the differences between implicit and explicit learning

Using the attached word documents from the implicated learning experiment create a report on the experiment. In your report, write a brief introduction explaining the differences between implicit and explicit….

Fictionial case study

Within the framework of an APA style paper, compose a fictional case study of a test taker who is under a stereotype threat. The case study content will include: a….

In this paper you will consider the ethical obligations involved in the public administration sector by reviewing a case study

In this paper you will consider the ethical obligations involved in the public administration sector by reviewing a case study. This paper is based primarily on the three articles acticles….