This week we explored the atom a bit deeper and we also just touched on our tour of the periodic table. I gave everyone an early Christmas present when I gave everyone their very own periodic table to cherish forever.
Homework for this week is to answer the following questions. I've provided the answers in the .pdf. Please check your answers when you are done. The homework is really intended to be a pre-quiz quiz so be sure you get them all right.
1. What is the definition of an ion?
2. What is the definition of an isotope?
3. What three particles are inside an atom?
4. What is the definition of an atom.
5. What is the charge on each one of the three particles in the atom?
6. Which is greater, the amount of atoms that you can line up across the tip of a human hair or the amount of people in that you can fit in a movie theater?
7. How many protons does an atom of carbon have?
8. How many protons does an atom of Sodium have?
9. How many protons does an atom of Rutherfordium have?
10. What is the atomic mass of oxygen?
11. What is the atomic mass of tin?
12. What is the atomic mass of mercury?
13. If a proton has a mass of 1 and a neutron has a mass of 1, how come the atomic masses are so strange?
14. Remember that atomic mass is the number of protons and neutrons in an atom. So, to find the number of neutrons in an atom you need to subtract the number of protons from the atomic mass. For example, if I want to find the number of neutrons in a helium atom I would subtract 2 protons from 4 atomic mass to get 2 neutrons. Now you try it. Find the number of neutrons in the following atoms. Be sure to round your numbers to the nearest whole number.
a. Boron
b. Calcium
c. Beryllium
d. Fluorine
e. Thallium (The most poisonous element on the table!!)
No comments:
Post a Comment