Easy algebra 2 assignment
Name_________________________________ Period and date___________________
Objectives: Student will be able to:
Use the periodic table to obtain information about an element IOT determine the number of each of the subatomic particles in a particular isotope.
Do Now/Motivation: What information can you obtain from the periodic table?
Atomic Structure and the Periodic Table
Mass number = number of protons + number of neutrons
Atomic number = number of protons = number of electrons in a neutral atom.
Atomic numbers can be found on the Periodic Table as depicted in the diagram below;
- Find the number of protons, neutrons, and electrons in each of the atoms below
What do these two atoms have in common? What is different about them?
Isotope – an element that has the same number of protons (or same atomic number) but, has a different number of neutrons (or a different mass number).
- Hydrogen has three isotopes. They are Hydrogen-1 (protium), Hydrogen-2 (deuterium) and Hydrogen-3 (tritium).
Draw the symbols for each.
How do they compare in their number of protons, neutrons, and electrons?
- Complete the following chart by filling in the appropriate numbers.
Note: 14C is the same as
- Define Isotope.
Compare the following isotopes in terms of their number of protons, neutrons, and electrons: