Unit 2 Test Study Guide: Atomic Structure and the Periodic ...

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Name: ________________________________________ ____ Class: ___________________________ unit 2 Test Study guide : Atomic Structure and the Periodic Table 1. What is an atom? Give the definition. An atom is the building block of all matter. It is the basic particle from which all elements are made. 2. Define molecule, and give 3 examples of molecules. A molecule is the combination of two or atoms held together through a chemical bond. Examples include O2, H2O, and MgSO4 3. There are 3 subatomic particles in the atom. Fill in the blanks in the following chart, including the name, charge, and location of the particle. 4. Label the atom below: Particle Charge Location Neutron Neutral It is located in the nucleus. Electron Negative It is located in the orbitals or the electron cloud. Proton Positive It is located in the nucleus.

Unit 2 Test Study Guide: Atomic Structure and the Periodic Table 1. ... The number of protons is the same as the atomic number of the element because the number of protons defines the element. 9. When drawing the Bohr Models of atoms, each electron orbital can hold a MAXIMUM ... Carbon 1 atom Chlorine (5*2) =10 atoms ...

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