Question 1

Which of the following elements is a metalloid located in Period 3 of the periodic table?

Accepted Answer

Silicon (Si)

Question 2

Which group on the periodic table contains the noble gases?

Accepted Answer

Group 8A (18)

Question 3

A patient is diagnosed with a magnesium deficiency. Which of the following is a primary function of magnesium in the human body?

Accepted Answer

Required for metabolic reactions and component of bones

Question 4

Which of the following statements best describes the properties of metals?

Accepted Answer

They are shiny, malleable, ductile, and good conductors of electricity.

Question 5

Which element is in Group 2A (2), Period 3 of the periodic table?

Accepted Answer

Magnesium (Mg)

Question 6

Which of the following elements is classified as a nonmetal and is essential for the formation of proteins and nucleic acids in the human body?

Accepted Answer

Nitrogen (N)

Question 7

Which of the following best explains why silicon (Si) is widely used in the electronics industry?

Accepted Answer

It is a semiconductor, allowing its conductivity to be modified.

Question 8

A sample contains an element that is shiny, malleable, and conducts electricity well. It is found in Group 1A (1). Which element is it most likely to be?

Accepted Answer

Potassium (K)

Question 9

Which of the following elements is a halogen and is found in Period 4?

Accepted Answer

Bromine (Br)

Question 10

Which of the following is a correct statement about the arrangement of elements in the periodic table?

Accepted Answer

Elements are arranged by increasing atomic number and grouped by similar properties.

Question 11

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

Accepted Answer

Iodine (I)

Question 12

A student claims that all elements in Group 8A (18) are highly reactive. Which of the following best evaluates this claim?

Accepted Answer

The claim is incorrect because Group 8A (18) elements are noble gases and are generally unreactive.

Question 13

Which of the following elements is a nonmetal, is a gas at room temperature, and is essential for respiration in humans?

Accepted Answer

Oxygen (O)

Question 14

Which of the following best describes the difference between a period and a group on the periodic table?

Accepted Answer

A period is a horizontal row; a group is a vertical column.

Question 15

Which of the following elements is a metal, is liquid at room temperature, and is not an alkali metal?

Accepted Answer

Mercury (Hg)

Question 16

A patient is found to have a deficiency in the most common positive ion in fluids outside cells, which is essential for water balance and nerve impulses. Which element is deficient?

Accepted Answer

Sodium (Na)

Question 17

Which of the following elements is a metalloid and is used to harden lead and color glass and plastics?

Accepted Answer

Antimony (Sb)

Question 18

Which of the following is a property of nonmetals?

Accepted Answer

They have low melting points and are poor conductors of heat.

Question 19

Which of the following elements is a representative element in Group 5A (15) and is essential for DNA and nucleic acids?

Accepted Answer

Phosphorus (P)

Question 20

Which of the following best describes the role of trace elements in the human body?

Accepted Answer

They are present in very small amounts but are essential for specific biological functions.

4.2

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드