TASC Physical Sciences Level 3 Practice Questions - TASC Physical Sciences Level 3 (Course Code PSC315118) Exam - TASC Physical Sciences Level 3 Practice Questions - TASC Physical Sciences Level 3 (Course Code PSC315118) Exam

Question 1

Radium-226 (\(^{226}_{88}\text{Ra}\)) undergoes alpha decay to form Radon (\(\text{Rn}\)). What are the mass number and atomic number of the resulting Radon isotope?

Mass number = 222, Atomic number = 86 Mass number = 224, Atomic number = 86 Mass number = 222, Atomic number = 87 Mass number = 226, Atomic number = 86

Correct Answer:

Mass number = 222, Atomic number = 86

Question 2

Cobalt-60 has a half-life of 5.27 years. If a radioactive source originally contains 80.0 g of Cobalt-60, how much Cobalt-60 remains after 15.81 years?

10.0 g 20.0 g 40.0 g 5.0 g

Correct Answer:

10.0 g

Question 3

Carbon-14 (\(^{14}_6\text{C}\)) undergoes beta-minus (\(\beta^-\)) decay. Which equation correctly describes this nuclear reaction?

\(^{14}_6\text{C} \rightarrow ^{14}_7\text{N} + ^0_{-1}\text{e} + \bar{\nu}_e\) \(^{14}_6\text{C} \rightarrow ^{14}_5\text{B} + ^0_{+1}\text{e} + \nu_e\) \(^{14}_6\text{C} \rightarrow ^{10}_4\text{Be} + ^4_2\text{He}\) \(^{14}_6\text{C} \rightarrow ^{13}_6\text{C} + ^1_0\text{n}\)

Correct Answer:

\(^{14}_6\text{C} \rightarrow ^{14}_7\text{N} + ^0_{-1}\text{e} + \bar{\nu}_e\)

Question 4

Naturally occurring chlorine consists of two isotopes: \(^{35}\text{Cl}\) (isotopic mass 34.97 u, relative abundance 75.78%) and \(^{37}\text{Cl}\) (isotopic mass 36.97 u, relative abundance 24.22%). What is the relative atomic mass of chlorine?

35.45 35.97 36.00 35.00

Correct Answer:

35.45

Question 5

According to Valence Shell Electron Pair Repulsion (VSEPR) theory, what is the molecular geometry of a water molecule (\(\text{H}_2\text{O}\))?

Bent (V-shaped) Linear Trigonal planar Tetrahedral

Correct Answer:

Bent (V-shaped)

Question 1

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Prepare with the TASC Physical Sciences Level 3 Practice Questions - TASC Physical Sciences Level 3 (Course Code PSC315118) Exam practice quiz. This question bank includes 100 questions covering text, mass, solution, force, and reaction. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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TASC Physical Sciences Level 3 Practice Questions - TASC Physical Sciences Level 3 (Course Code PSC315118) Exam

This practice set contains 100 questions from the matching question bank and focuses on text, mass, solution, force, and reaction. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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TASC Physical Sciences Level 3 Practice Questions - TASC Physical Sciences Level 3 (Course Code PSC315118) Exam

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