Question 1

Which of the following statements best explains why elements in the same group of the periodic table have similar chemical properties?

Accepted Answer

They have the same number of valence electrons.

Question 2

Which element is classified as a metalloid and is commonly used in computer chips due to its semiconducting properties?

Accepted Answer

Silicon (Si)

Question 3

What is the trend in ionization energy as you move from left to right across a period in the periodic table?

Accepted Answer

Ionization energy increases.

Question 4

Which element has the highest electronegativity value according to the periodic trends?

Accepted Answer

Fluorine (F)

Question 5

A patient is found to have a deficiency in the element necessary for oxygen transport in the blood. Which element is most likely deficient?

Accepted Answer

Iron (Fe)

Question 6

Which of the following elements is a liquid at room temperature?

Accepted Answer

Mercury (Hg)

Question 7

Which group in the periodic table contains elements that all react in a 1:1 ratio with sodium to form salts of the type NaX?

Accepted Answer

Halogens

Question 8

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

Accepted Answer

Shiny, good conductors of electricity, malleable

Question 9

Which element is classified as a transition metal and is universally valued as currency through time?

Accepted Answer

Gold (Au)

Question 10

What is the correct order of ionization energy for the halogens: chlorine (Cl), bromine (Br), and iodine (I)?

Accepted Answer

$Cl > Br > I$

Question 11

Which of the following elements is necessary for bone health and is also a major element in the human body?

Accepted Answer

Calcium (Ca)

Question 12

Which element is used in barometers to measure pressure due to its liquid state at room temperature?

Accepted Answer

Mercury (Hg)

Question 13

Which of the following elements is a nonmetal and is a component of proteins, liver, vitamin B12, and insulin?

Accepted Answer

Sulfur (S)

Question 14

Which of the following best describes the trend in atomic radius as you move down a group in the periodic table?

Accepted Answer

Atomic radius increases.

Question 15

Which element is commonly used in radioactive tracing in the human body?

Accepted Answer

Iodine (I)

Question 16

A sample contains copper and zinc dissolved together. What is this mixture called?

Accepted Answer

An alloy

Question 17

Which of the following equations correctly represents the first ionization energy process for magnesium?

Accepted Answer

$Mg(g) + IE \rightarrow Mg^+(g) + e^-$

Question 18

Which of the following elements is a nonmetal, does not conduct electricity (except for graphite), and tends to accept electrons in chemical reactions?

Accepted Answer

Sulfur (S)

Question 19

Which of the following elements is classified as a transition metal?

Accepted Answer

Iron (Fe)

Question 20

Which of the following best describes the organization of the periodic table?

Accepted Answer

Elements are arranged in columns by chemical properties and rows by number of energy levels.

Chap 3 Electronic Structure and Periodic Law: The Periodic Table and Element Properties

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