Chapter 10, Problem 41P

A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar mass is 189 g/mol. What is the radius of an atom of the metal? O 9.39 x 10 7 cm 1.39 x 10 8 cm 8.02 x 10 7 cm 2.60 x 10 -9 cm 1.84 cm x 108 2.69 x 10 8 cm 2.49 x 10 9 cm 1.51 x 10 8 cm O O O

Give some examples of Covalent-network solids?

if you can. If there is not enough information to decide, choose can't decide in the element 1 2 3 description Element 1 is a hard dark-red solid. A 10. g cube of it is set on a hot plate. After 10 minutes, the temperature of the top of the cube has risen by less than 1 °C. Element 2 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square of it, only 1 mm thick, is flexed slightly by hand. The sheet snaps in half. Element 3 is a moderately soft silvery-gray solid. A small cube of it is put into a ceramic crucible and heated strongly. It melts about not far above room temperature. metal or nonmetal? O metal O nonmetal O (can't decide) O metalk O nonmetal O (can't decide) O metal O nonmetal O (can't decide)

Why do salt crystals have a cubical shape?

The ionic compound, CsCl, forms a body centered cubic structure (see below) where the anions occupy the corners of the crystal (red) and the cations the body centered position (green). If the density of the compound is 3.99 g/cm3 and the ionic radius of Cs+ is 169 pm, what is the ionic radius of Cl− in pm?

Define crystal structure?

Distinguish sodium chloride structure and diamond structure. Provide an illustration to support your explanation

Safari 7:34 AM Sun Oct 1 Patterns in Natur...ule 3 assignment 2 Home LE Calibri Bold Italic (E Patterns in Nature Module 3 Assignment 1. Why is glass not a mineral? Insert Draw Layout Review View References BI ●●● U aA 2. Describe several ways in which minerals can form. Directions: Answer each question as thoroughly as possible. Please make sure all of your answers are in your own words. 3. Name two different patterns of crystal growth. Define each one. ili 4. What is a geode? Which type of crystal growth do geodes exhibit? ㅁㅇ =✓ 5. If a mineral is very hard, which type of chemical bonds would that mineral most likely have in its atomic structure, and why? A 19% 0 :

Calculate the lattice enthalpy of MgBr2 given the following data below: Enthalpy of sublimation of Mg = +148 kJ/mol lonization enthalpy of Mg to Mg²* = +2187 kJ/mol Enthalpy of vaporization of Br2(1) = + 31 kJ/mol Enthalpy of dissociation of Br2(g) = +193 kJ/mol Enthalpy of electron affinity of Br(g) = 331 kJ/mol Enthalpy of formation of MgBr2(s) from Mg(s) and Br2(1) = -524 kJ/mol O a. 2197 kJ/mol O b. 3745 kJ/mol Ос. 2421 kJ/mol O d. 2390 kJ/mol O e. 2752 kJ/mol