Download Periodic Table Lecture - 2016-17 version

Name ___________________________________________ Date________ Per____ ST#___
Periodic Table Lecture/Discussion Notes and Questions
1.
Elements are in the order they are in on the periodic table because of the number of
___________ they have. For example, hydrogen has 1 __________, so it is element #1.
2.
How many protons does carbon have if it is element #6?
3.
What is the atomic number of carbon and what does it tell you about carbon?
4.
What is the charge on a proton?
5.
Where are protons located in the atom?
6.
Where are neutrons located in the atom?
In the space below draw a picture of carbon with the protons and neutrons in the nucleus
7.
What two particles, plus some energy, make up a neutron?
8.
What is the charge on a neutron?
9.
Carbon-14 is called carbon-14 (notice that carbon is not capitalized) because it has _____
protons and _______ neutrons, which adds up to ______
10. Note that the way we write carbon-14 is 14C
11. What has to happen for 14C to change to 14N?
12. What is the half-life of carbon-14, and what does it tell you about carbon-14?
13. A. What is the atomic mass of Oxygen, right off of the periodic table? _________________
B. What is the mass number of oxygen? ________________
C. How do you get the mass number of an element?
D. What does the mass number tell you about an element?
E. How many protons and neutrons does oxygen-16, atomic number 8, mass number 16
have? Protons_________________ Neutrons _______________ Total ___________
F. How many protons and neutrons does oxygen-18, atomic number 8, mass number 18
have? Protons_________________ Neutrons _______________ Total ___________
14. What has to happen for the 18O to turn into 18F?
15. This is for when we look at the pdf of the radioactive decay series for uranium:
 Radioactive decay occurs when an unstable (radioactive) isotope transforms to a more stable
isotope, generally by emitting a subatomic particle such as an alpha or beta particle.
Radionuclides that give rise to alpha and beta particles are shown in these figures, as are
those that emit significant gamma radiation.
 Gamma radiation is not a mode of radioactive decay (such as alpha and beta decay). Rather,
it is a mechanism by which excess energy is emitted from certain radionuclides, i.e., as highly
energetic electromagnetic radiation emitted from the nucleus of the atom.
(http://www.ead.anl.gov/pub/doc/natural-decay-series.pdf)
16. What is an alpha particle and where does it come from?
17. Does losing an alpha particle change the atomic mass and/or the atomic number of the atom it
comes out of?
18. What is a beta particle?
19. Does losing a beta particle change the atomic mass and/or the atomic number of the atom it
comes out of?
20. Describe what emitting gamma radiation does to the atomic mass and/or the atomic number of
an atom