Atomic Structure Quiz

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Questions and Answers

Which of the following indicates the number of protons in an atom's nucleus?

mass number
atomic weight
atomic mass
mass weight
atomic number (correct)

How are radioisotopes useful in the treatment of cancer patients?

When they are created they absorb radioactive energy and destroy cancer cells
When they decay they release radioactive energy and destroy cancer cells (correct)
When they decay they absorb radioactive energy and destroy the cancer cells
Radioisotopes are harmful so they are not useful in the treatment of cancer
When they are created they absorb radioactive energy and destroy cancer cells

Which of the following molecules contain polar covalent bonds?

H2
CH4
O2
H2O (correct)

The _ bonds between the carbon atoms in unsaturated fatty acids of phospholipids helps to __ fluidity of membranes.

<p>double; increase (D)</p> Signup and view all the answers

What is the difference between atomic mass and atomic weight?

<p>Atomic mass is the mass of an atom's nucleus, while atomic weight is the average mass of all the isotopes of an element. (C)</p> Signup and view all the answers

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