Question 1

​ An element in which the distinguishing electron is found in its f subshell is called a(n)_____.

Accepted Answer

A) representative element 
B) transition element 
C) inner-transition element 
D) post-transition element 
A) representative element 
B) transition element 
C) inner-transition element 
D) post-transition element

Question 2

The distinguishing electron for most non-metals is an s electron.

Accepted Answer

A) True 
 B)False

Question 3

Choose the correct electronic configuration for the element As.

Accepted Answer

A) [Ar] 4 s 2 3 d 10 4 p 3 
B) 4 s 2 3 d 10 4 p 3 
C) [Ar] 4 s 2 4 d 10 4 p 3 
D) 4 s 2 4 d 10 4 p 3 
A) [Ar] 4 s 2 3 d 10 4 p 3 
B) 4 s 2 3 d 10 4 p 3 
C) [Ar] 4 s 2 4 d 10 4 p 3 
D) 4 s 2 4 d 10 4 p 3

Question 4

​ The _____ _____ states that elements with similar chemical properties occur at regular intervals when the elements are arranged in order of increasing atomic numbers.

Accepted Answer

The answer of ​ The _____ _____ states that elements...

Question 5

Which element is represented by the distinguishing electron configuration 5 d 9?

Accepted Answer

A) Pd 
B) Ag 
C) Pt 
D) Au 
A) Pd 
B) Ag 
C) Pt 
D) Au

Question 6

The atomic size of the elements in a group increases with the period number.

Accepted Answer

A) True 
 B)False

Question 7

​ Which of the following configurations represents the abbreviated electronic configuration of sodium (1 s 2 2 s 2 2 p 6 3 s 1 )?

Accepted Answer

A) [Ne]3 s 1 
B) [Ar]4 s 23 d 104 p 3 
C) [He]2 s 22 p 3 
D) [Ar]4 s 23 d 2 
A) [Ne]3 s 1 
B) [Ar]4 s 23 d 104 p 3 
C) [He]2 s 22 p 3 
D) [Ar]4 s 23 d 2

Question 8

As one moves across the 4th period from left to right, the valence electrons go into the same shell, and the atomic radius decreases. The decrease in atomic radius is due to the increase in the attraction of the nucleus for the electrons in the shells.

Accepted Answer

A) True 
 B)False

Question 9

If the formula for sulfuric acid is H2SO4, what would be the expected formula for the compound between hydrogen and tellurium, Te?

Accepted Answer

A) H2TeO4 
B) HTe 
C) HTe2 
D) H2Te 
A) H2TeO4 
B) HTe 
C) HTe2 
D) H2Te

Question 10

Which of the following elements contains a total of 10 "s" electrons?

Accepted Answer

A) Sr 
B) Sb 
C) Cs 
D) more than one response is correct 
A) Sr 
B) Sb 
C) Cs 
D) more than one response is correct

Question 11

Which one of these elements is a gas at room temperature?

Accepted Answer

A) antimony 
B) phosphorus 
C) nitrogen 
D) arsenic 
A) antimony 
B) phosphorus 
C) nitrogen 
D) arsenic

Question 12

What is the symbol of the element that is in Period 4, and Group IIA(2)of the periodic table?

Accepted Answer

A) Zn 
B) Ca 
C) C 
D) Ti 
A) Zn 
B) Ca 
C) C 
D) Ti

Question 13

All non-metals are representative elements.

Accepted Answer

A) True 
 B)False

Question 14

Unlike the original attempt by Mendeleev, the modern periodic table arranges elements based on what elemental feature?

Accepted Answer

A) mass number 
B) atomic number 
C) isotope composition 
D) relative size 
A) mass number 
B) atomic number 
C) isotope composition 
D) relative size

Question 15

What type of electron is the distinguishing electron in S?

Accepted Answer

A) s 
B) p 
C) d 
D) f 
A) s 
B) p 
C) d 
D) f

Question 16

The electronic configuration of element 17 ends with _____ .

Accepted Answer

A) 2 p 3 
B) 3 p 5 
C) 2 p 5 
D) 3 p 3 
A) 2 p 3 
B) 3 p 5 
C) 2 p 5 
D) 3 p 3

Question 17

Which pair of the following represents the same electron configuration?

Accepted Answer

A) [Ne] 3s2 and 1 s 2 2 s 2 2 p 6 3 s 2 
B) [He] 3s2 and 1 s 2 2 s 2 2 p 6 3 s 2 
C) [Ar]3s2 and 1 s 2 2 s 2 2 p 6 3 s 2 
D) All represent the same configuration. 
A) [Ne] 3s2 and 1 s 2 2 s 2 2 p 6 3 s 2 
B) [He] 3s2 and 1 s 2 2 s 2 2 p 6 3 s 2 
C) [Ar]3s2 and 1 s 2 2 s 2 2 p 6 3 s 2 
D) All represent the same configuration.

Question 18

Hydrogen is a noble gas.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A) element 76 
B) element 60 
C) element 56 
D) element 17 
A) element 76 
B) element 60 
C) element 56 
D) element 17

Question 20

____ explains why orbitals can contain a maximum of two electrons.

Accepted Answer

A) Hund's rule 
B) Pauli exclusion principle 
C) Periodic law 
D) None of these 
A) Hund's rule 
B) Pauli exclusion principle 
C) Periodic law 
D) None of these

Exam 3: Electronic Structure and the Periodic Law

​ An element in which the distinguishing electron is found in its f subshell is called a(n)_____.

The distinguishing electron for most non-metals is an s electron.

Choose the correct electronic configuration for the element As.

​ The _____ _____ states that elements with similar chemical properties occur at regular intervals when the elements are arranged in order of increasing atomic numbers.

Which element is represented by the distinguishing electron configuration 5 d 9?

The atomic size of the elements in a group increases with the period number.

​ Which of the following configurations represents the abbreviated electronic configuration of sodium (1 s 2 2 s 2 2 p 6 3 s 1 )?

As one moves across the 4th period from left to right, the valence electrons go into the same shell, and the atomic radius decreases. The decrease in atomic radius is due to the increase in the attraction of the nucleus for the electrons in the shells.

If the formula for sulfuric acid is H2SO4, what would be the expected formula for the compound between hydrogen and tellurium, Te?

Which of the following elements contains a total of 10 "s" electrons?

Which one of these elements is a gas at room temperature?

What is the symbol of the element that is in Period 4, and Group IIA(2)of the periodic table?

All non-metals are representative elements.

Unlike the original attempt by Mendeleev, the modern periodic table arranges elements based on what elemental feature?

What type of electron is the distinguishing electron in S?

The electronic configuration of element 17 ends with _____ .

Which pair of the following represents the same electron configuration?

Hydrogen is a noble gas.

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

____ explains why orbitals can contain a maximum of two electrons.

Matter, Measurements, and Calculations

Atoms and Molecules

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, Bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

An element in which the distinguishing electron is found in its f subshell is called a(n)_____.

The _ _ states that elements with similar chemical properties occur at regular intervals when the elements are arranged in order of increasing atomic numbers.

Which element is represented by the distinguishing electron configuration 5 d ⁹?

Which of the following configurations represents the abbreviated electronic configuration of sodium (1 s ² 2 s ² 2 p ⁶ 3 s ¹ )?

If the formula for sulfuric acid is H₂SO₄, what would be the expected formula for the compound between hydrogen and tellurium, Te?