311C F10 Worksheet_1_Chem

311C F10 Worksheet_1_Chem - NAME _ BIO 311C Discussion...

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NAME _________________________ BIO 311C Discussion Worksheet: The Chemical Context of Life 1. An atom consists of a nucleus, and an outer part called the electron cloud. The nucleus contains ______________ and ______________. 2. Fill in the charge for each type of subatomic particle: a. Proton ____________ b. Neutron ___________ c. Electron ___________ 3. The atomic number of an element indicates the number of ____________ in the nucleus of the atom, and also tells us the number of ___________ outside the nucleus. This number is unique for each element. 4. The mass number of an element can vary. This number is the sum of the _____________ and ___________ of an atom. Thus, you can determine the number of _________ by subtracting the atomic number from the mass number. 5. 6. Isotopes of an element differ in the number of neutrons found in the nucleus. (A) One isotope of chlorine has 17 protons and 18 neutrons, (B) while another has 17 protons and 20 neutrons. For both isotopes fill in the atomic number, mass number, and
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This note was uploaded on 11/10/2011 for the course HDF 304 taught by Professor Gray during the Spring '08 term at University of Texas at Austin.

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311C F10 Worksheet_1_Chem - NAME _ BIO 311C Discussion...

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