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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

A portion of the crystalline lattice for potassium is illustrated below.

  1. (a) In what type of unit cell are the K atoms arranged?

images

A portion of the solid-state structure of potassium.

  1. (b) If one edge of the potassium unit cell is 533 pm, what is the density of potassium?

(a)

Interpretation Introduction

Interpretation:

Type of unit cell that are in images atoms has to be calculated.

Concept introduction:

Body Centered Cubic Structure:

In simple cubic crystal structure, eight atoms is placed in the corner of the cube and one atom in the center of the cube, therefore it is called as body-centered cubic.

Explanation

The unit cell for tungsten is body- centered cubic. There are atoms at each...

(b)

Interpretation Introduction

Interpretation:

The density of potassium has to be calculated.

Concept introduction:

The volume of the atom is given below,

images

The density of the unit cell is calculated as follows,

images

images

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