Week 2.docx - Written Assignment 2: Atomic Structure and...

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Written Assignment 2: Atomic Structure and Chemical CompoundsAnswer all assigned questions and problems, and show all work.1.What is the mass number of an iron atom that has 28 neutrons?(3 points)(Reference: Chang 2.13)
2.Calculate the number of neutrons of239Pu.(3 points)
3.Write the appropriate symbol for each of the following isotopes: (a)Z= 11,A= 23;(b)Z= 28,A= 64(6 points)A ) 23Na11B)64Ni28(Reference: Chang 2.17)4.Define, with two examples, the following terms: (a) alkali metals, (b) alkaline earthmetal, (c) halogens, and (d) noble gases.(8 points)a)Li & Nab)Be & Mgc)F & Cld)He & Ne(Reference: Chang 2.22)5.Identify the following as elements or compounds: (a) NH3, (b) N2, (c) CO, (d) Co,and(e) He.(5 points)A) CompoundB) ElementC) CompoundD) CompoundE) Element1Copyright © 2017 by Thomas Edison StateUniversity. All rights reserved.
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6.Give the numbers of protons and electrons in each of the following: (a) Na+, (b) Ca2+,(c)Al3+, (d) I, (e) O2–, (f) N3–, and (g) He.(14 points)

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Term
Spring
Professor
Khurana
Tags
Chemistry, Atom, Chemical element, Thomas Edison State University
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
General, Organic, & Biological Chemistry
The document you are viewing contains questions related to this textbook.
Chapter 3 / Exercise 3-99
General, Organic, & Biological Chemistry
Stoker
Expert Verified

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