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Intro to chemistry SAQs answered and marked

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  • September 10, 2024
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DistanceLearningCentre.com
STUDENT ASSESSMENT SAQ SHEET
SUBJECT: Chemistry/ Medicine

UNIT: Introduction to Chemistry/ Fundamentals of Chemistry

TOPIC: Introduction to Chemistry/ Fundamentals of Chemistry

LEVEL: 3

YOUR NAME:


How to use this document
You will use this document to record your answers to the Self Assessment Questions
(SAQs) in the topic you have just studied.

You should complete the table in Part 1, and the comment box in Part 2. You may add or
delete rows as appropriate when you are completing the table in Part 1.

Once completed, please upload an electronic copy of this document at your Learner
Account (for marking, and to be checked for plagiarism). Please notify your tutor by email
when you have uploaded this document at your Learner Account.

Your tutor will then provide the Answers to SAQs for you to mark your answers, using this
sheet.

Once you have completed and marked all of the SAQ answers for the topics in a particular
unit, your tutor will provide the deadline for your assessment.




© DistanceLearningCentre.com, 2022 1

,STUDENT ASSESSMENT SAQ SHEET



PART 1: SAQ answers
Fill in the following table by writing your answer to each Self-Assessment Question, in your
own words.
When you have completed all of the SAQs in the topic, mark your work using the exemplar
SAQ answers that your tutor will provide.
Before you send your tutor your SAQ answers, please complete Part 2: Comments.

Mark your
answer by
SAQ Questions and Answers deleting the
tick or the
cross

SAQ 1 Question:



1. In the table below, complete the four columns by filling the
atomic and mass numbers and symbol for the elements and
the numbers of protons, electrons and neutrons.

Number of Number of Number
Element protons electrons of
neutrons




5


35


20


20




Your answer:




© DistanceLearningCentre.com, 2022 2

, STUDENT ASSESSMENT SAQ SHEET


Element Number of
protons
Number of
electrons
Number
of

neutrons
13 13 14


5 5 6


29 29 35


20 20 20


19 19 20


26 26 30


SAQ 2 Question:
1. Give the electronic structure of the following elements. The
atomic number of the elements is given in brackets.
a) Lithium (3)
b) Carbon (6)
c) Argon (18)
d) Potassium (19)

2. Give the electronic structure for the following species which
are ions. These are charged particles formed by the removal
or addition of electrons to and from neutral atoms. In the
case of the magnesium ion (Mg2+) it will have had two
electrons removed from the atom. The reverse is true for the
bromide ion (Br-) which will have one electron added to the
atom.
a) Lithium ion Li+
b) Oxide ion (oxygen (8)) O2-
c) Sulphide ion (sulphur (16)) S2-
d) Calcium ion (20) Ca2+


Your answer:




© DistanceLearningCentre.com, 2022 3

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