PaperChemistry

For numerical problems, calculation set up should be shown.

1. Complete the table for the following neutral atoms. Show your work in the space below the table.

# Protons

# Electrons

# Neutrons

tin-121

oxygen-15

2. Complete the table for the following ions. Show your work in the space below the table.

# Protons

# Electrons

# Neutrons

3. Circle the best answer for each question. Briefly explain your choice for each one.
(1) What is the mass of an ion that has 16 protons, 18 electrons, and 16 neutrons?
a. 50 amuBriefly explain your choice here:

b. 34 amu
c. 32 amu
d. 18 amu
e. 16 amu
(2) What is the charge of an ion that has 19 protons, 18 electrons, and 20 neutrons?
a. –2Briefly explain your choice here:

b. –1
c. 0
d. +1
e. +2
(3) If an ion had 16 protons and 18 electrons, which element would it be?
a. nitrogen (N)Briefly explain your choice here:

b. sulfur (S)
c. neon (Ne)
d. oxygen (O)
4. List the names and molecule formulas for the seven elements that most commonly exist as diatomic molecules.

5. List the names and symbols for the six elements that are metalloids.

6. List the names and symbols for:
a. three alkali metals b. three halogens

c. three noble gases d. three alkaline earth metals

7. List the names and symbols for:
a. three transition metals b. three inner-transition metals

c. three main-group elements

8. Read the following statements about electromagnetic radiation and photons. For each one, circle or underline the uppercase word that makes the statement true.

a. If two things are directly related to each other, or directly proportional to each other, then when one of the things gets larger, the other one gets LARGER / SMALLER.
b. If two things are inversely related to each other, or inversely proportional to each other, then when one of the things gets larger, the other one gets LARGER / SMALLER.
c. Wavelength and frequency are DIRECTLY / INVERSELY related to each other.
d. Energy and frequency are DIRECTLY / INVERSELY related to each other.
e. Wavelength and energy are DIRECTLY / INVERSELY related to each other.

9. What is the frequency of a photon in the yellow part of the visible range if its wavelength is 575 nanometers?

10. a. What is the wavelength of a photon in the microwave range with
a frequency of 2.60×1011 Hz?

b. You can listen to Orioles games on FM radio station 105.7. What is
the wavelength for photons that have a frequency of 105.7 MHz?

11. The amount of energy needed for a photon to break apart an O2 molecule into individual oxygen atoms is 8.20×10–19 Joules.
a. What is the frequency of one of these photons?

b. What is the wavelength of one of these phot




Why Choose Us

  • 100% non-plagiarized Papers
  • 24/7 /365 Service Available
  • Affordable Prices
  • Any Paper, Urgency, and Subject
  • Will complete your papers in 6 hours
  • On-time Delivery
  • Money-back and Privacy guarantees
  • Unlimited Amendments upon request
  • Satisfaction guarantee

How it Works

  • Click on the “Place Order” tab at the top menu or “Order Now” icon at the bottom and a new page will appear with an order form to be filled.
  • Fill in your paper’s requirements in the "PAPER DETAILS" section.
  • Fill in your paper’s academic level, deadline, and the required number of pages from the drop-down menus.
  • Click “CREATE ACCOUNT & SIGN IN” to enter your registration details and get an account with us for record-keeping and then, click on “PROCEED TO CHECKOUT” at the bottom of the page.
  • From there, the payment sections will show, follow the guided payment process and your order will be available for our writing team to work on it.