Question 1

Which of the following elements is most likely to form a cation with a +2 charge in physiological conditions?

Accepted Answer

Calcium (Ca)

Question 2

A patient presents with muscle cramps and irregular heartbeat. Blood tests reveal a deficiency in an element that is essential for nerve impulse transmission and is found in Group 1A of the periodic table. Which element is most likely deficient?

Accepted Answer

Potassium (K)

Question 3

Which of the following elements is a halogen and is essential for the synthesis of thyroid hormones?

Accepted Answer

Iodine (I)

Question 4

Which element is most likely to gain one electron to achieve a stable octet configuration, based on its position in the periodic table?

Accepted Answer

Chlorine (Cl)

Question 5

A molecule of water is formed when two hydrogen atoms bond with one oxygen atom. What type of bond is formed between the hydrogen and oxygen atoms?

Accepted Answer

Covalent bond

Question 6

Which of the following elements is a transition metal that plays a critical role in oxygen transport in the blood?

Accepted Answer

Iron (Fe)

Question 7

Which element is most likely to form an anion with a -2 charge, based on its group in the periodic table?

Accepted Answer

Sulfur (S)

Question 8

Which of the following best describes the trend in atomic radius as you move from left to right across a period in the periodic table?

Accepted Answer

Atomic radius decreases

Question 9

A patient is diagnosed with anemia due to a deficiency in an element that is found in Group 8B. Which element is most likely deficient?

Accepted Answer

Iron (Fe)

Question 10

Which of the following elements is a noble gas and is chemically inert under physiological conditions?

Accepted Answer

Neon (Ne)

Question 11

Which element is most likely to form a +1 cation, based on its position in the periodic table?

Accepted Answer

Potassium (K)

Question 12

Which of the following elements is essential for the formation of strong bones and teeth and is found in Group 2A?

Accepted Answer

Calcium (Ca)

Question 13

Which element is most likely to form a diatomic molecule in its natural state?

Accepted Answer

Oxygen (O)

Question 14

Which of the following elements is a metalloid and is important in the structure of some enzymes?

Accepted Answer

Silicon (Si)

Question 15

Which element is most likely to be found in the active site of an enzyme that catalyzes redox reactions?

Accepted Answer

Iron (Fe)

Question 16

Which of the following elements is most likely to form a covalent bond with hydrogen in organic molecules?

Accepted Answer

Carbon (C)

Question 17

Which element is most likely to be found in the backbone of DNA and RNA molecules?

Accepted Answer

Phosphorus (P)

Question 18

Which of the following elements is a major component of hemoglobin and is necessary for oxygen transport in the blood?

Accepted Answer

Iron (Fe)

Question 19

Which element is most likely to be found in the structure of amino acids and proteins?

Accepted Answer

Nitrogen (N)

Question 20

Which of the following elements is a trace element that is essential for the function of the thyroid gland?

Accepted Answer

Iodine (I)

Chemistry Foundations for Anatomy & Physiology: The Periodic Table

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