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Chrome File Edit View History Bookmarks People Window Help * 46% D, Wed 12:02 AM : cre × Ho x Ge: × The × maj X iso × Shaleen > d Secure https://tamu.blackboard.com/webapps/blackboard/execute/content/file?d-view&content;_id--3 7 15687_1&course-id;=-104653-1 Ch 03 104_study_guide F16 My Grades Student Resources eCampus Help Write short answer essay response to the following general questions using figures and diagrams as appropriate; be able to elaborate on various aspects ofyour answers and define key terms. 3.1. Describe atomic structure, charge and mass, and explain the difference between ionic and covalent bonding 3.2. Identify the 8 most plentiful elements that make up the earth, and how these elements make up the major silicate minerals (i.e., which elements occur in which minerals). Another important element in the Earth is carbon; explain the carbonate complex anion and the major rock-forming minerals incorporating the carbonate anion. 3.3 Describe the building block of the silicate minerals (the silica tetrahedral complex anion), the main classes of silicate minerals based on arrangement of tetrahedra, and the general trends for the physical and chemical characteristics of the silicate mineral classes (e.g, density, melting temperature, color). 3.4 Explain the general relationships between types of bonding and mineral properties such as hardness and cleavage. Use examples of polymorphs (eg, C, Si02, CaC03) to supplement your answer Page 1 of 1

Explanation / Answer

Atomic structure:

In atom around the nucleus electrons are revolving these electrons have negative charge.In nucleus protons and nuetrons are present,proton have positive charge nuetron dont have an charge but the both masses are same.Compared to proton or nuetron mass electron mass is very very less.

Charge:

Charge is discovered by sceintist coulomb.one coulomb of charge equal to 6.25*10^18.

Mass:

Atomic mass equal to the sum of the masses of protons or electrons and masses of nuetrons

Ionic bond and covalent bond:

Two opposite ions attract each other and form the ionic bond.covalent bonding is a form of chemical bonding between two non metallic atoms which is charecterized by the sharing of pairs of electrons betweenatoms and other covalent bonds.

Ionic compounds are formed from strong electrostatic interactions between ions,which causes the higher electrical conductivity and melting points compared to covalent bonds.

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