Anatomy: The atoms 
Unit 2 Lecture Study Guide
1) What are the parts of an atom? Where are the subatomic particles found?
The atoms are the smallest units of matter with their own chemical characteristics. The atoms are divided into 2 parts. The first part is the central nucleus and the electron cloud. The central nucleus contains very heavy particles and the electron cloud contains very light moving particles. The subatomic particles are the protons, neutrons, and the electrons. They are located within the atom and the electrons spin rapidly around the central nucleus.
2) How does the Atomic Mass # differ from the Atomic #?
The atomic mass number differs from the atomic number is the atomic mass number is adding together the number of protons and neutrons in the nucleus. The atomic number defines the element which is the number in the nucleus.
3) What is an isotope? Give an example (show how it is an isotope).
Isotopes are atoms of the same element that have different mass numbers due to different numbers of neutrons. An example of an isotope is Uranium. On the periodic table the atomic number is 238 which is the elemental form. The example of an isotope is Uranium 235.
4) Compare and contrast the 3 basic types of chemical bonds and give an example of each.
The three types of chemical bonds are ionic, covalent, and hydrogen. An ionic bond is formed between atoms with opposite’s electrical charges. When an atom loses electrons it has a positive charge, and it is called and cation. When an atom gains an electron it has a negative charge, and it is called an anion. An example of an ionic bond is sodium chloride or table salt. The sodium atom has one electron in its outer shell which is easily lose resulting in a positive sodium ion. Chlorine has 7 electrons in its outer shell and adding one electron forms a negative chloride ion. The sodium ion and the chloride ion will bond together in an ionic bond to
1) What are the parts of an atom? Where are the subatomic particles found?
The atoms are the smallest units of matter with their own chemical characteristics. The atoms are divided into 2 parts. The first part is the central nucleus and the electron cloud. The central nucleus contains very heavy particles and the electron cloud contains very light moving particles. The subatomic particles are the protons, neutrons, and the electrons. They are located within the atom and the electrons spin rapidly around the central nucleus.
2) How does the Atomic Mass # differ from the Atomic #?
The atomic mass number differs from the atomic number is the atomic mass number is adding together the number of protons and neutrons in the nucleus. The atomic number defines the element which is the number in the nucleus.
3) What is an isotope? Give an example (show how it is an isotope).
Isotopes are atoms of the same element that have different mass numbers due to different numbers of neutrons. An example of an isotope is Uranium. On the periodic table the atomic number is 238 which is the elemental form. The example of an isotope is Uranium 235.
4) Compare and contrast the 3 basic types of chemical bonds and give an example of each.
The three types of chemical bonds are ionic, covalent, and hydrogen. An ionic bond is formed between atoms with opposite’s electrical charges. When an atom loses electrons it has a positive charge, and it is called and cation. When an atom gains an electron it has a negative charge, and it is called an anion. An example of an ionic bond is sodium chloride or table salt. The sodium atom has one electron in its outer shell which is easily lose resulting in a positive sodium ion. Chlorine has 7 electrons in its outer shell and adding one electron forms a negative chloride ion. The sodium ion and the chloride ion will bond together in an ionic bond to