Question 1

How many protons are there in In-113?

Accepted Answer

A)  49 
B)  64 
C)  65.8 
D)  113
Enter the appropriate word(s) to complete the statement. 
A)  49 
B)  64 
C)  65.8 
D)  113
Enter the appropriate word(s) to complete the statement. A

Question 2

Calculate the energy emitted from a neon atom as it releases a photon of light with a wavelength of 9.582 nm.

Accepted Answer

2.075 × 10^-17 J

Question 3

Which type of spectrum is produced when light is passed through a prism?

Accepted Answer

A)  continuous 
B)  absorption line 
C)  emission line 
D)  none of the above 
A)  continuous 
B)  absorption line 
C)  emission line 
D)  none of the above A

Question 4

Lanthanum has two isotopes: La-138 and La-139. Which of these isotopes has the highest natural abundance?

Accepted Answer

A)  La-138 
B)  La-139 
A)  La-138 
B)  La-139

Question 5

Which subatomic particle has the smallest mass and volume?

Accepted Answer

A)  electron 
B)  neutron 
C)  nucleus 
D)  proton 
A)  electron 
B)  neutron 
C)  nucleus 
D)  proton

Question 6

Argon has three isotopes: Argon-36, Argon-38, and Argon-40. Which of these isotopes has the highest natural abundance?

Accepted Answer

A)  Argon-36 
B)  Argon-38 
C)  Argon-40 
A)  Argon-36 
B)  Argon-38 
C)  Argon-40

Question 7

Chromium has four isotopes as shown in the table.
   Calculate the atomic mass of chromium. Include all digits in your answer.

Accepted Answer

The answer of Chromium has four isotopes as shown in...

Question 8

The abbreviated electron configuration for Cs is _____________________.

Accepted Answer

The answer of The abbreviated electron configuration for Cs is...

Question 9

The full electronic configuration for Br is _____.

Accepted Answer

The answer of The full electronic configuration for Br is...

Question 10

Calculate the energy emitted from a potassium atom as it releases a photon of light with a frequency of 5.99 × 1015 Hz.

Accepted Answer

Question 11

The abbreviated electron configuration for xenon is _________________.

Accepted Answer

The answer of The abbreviated electron configuration for xenon is...

Question 12

Which two Greek philosophers had conflicting thoughts on the nature of the atom?

Accepted Answer

A)  Galileo and Aristotle 
B)  Democritus and Dalton 
C)  Aristotle and Democritus 
D)  Democritus and Leucippus 
A)  Galileo and Aristotle 
B)  Democritus and Dalton 
C)  Aristotle and Democritus 
D)  Democritus and Leucippus

Question 13

Which of the following statements is NOT a part of Dalton's atomic theory?

Accepted Answer

A)  All matter is made up of tiny, indivisible particles called atoms. 
B)  Atoms cannot be created, destroyed, or transformed into other atoms in a chemical reaction. 
C)  All atoms of a given element contain protons, neutrons, and electrons. 
D)  Atoms combine in simple, whole-number ratios to form compounds. 
A)  All matter is made up of tiny, indivisible particles called atoms. 
B)  Atoms cannot be created, destroyed, or transformed into other atoms in a chemical reaction. 
C)  All atoms of a given element contain protons, neutrons, and electrons. 
D)  Atoms combine in simple, whole-number ratios to form compounds.

Question 14

Explain how a line spectrum is made.

Accepted Answer

A line spectrum is made when an element

Question 15

The full electronic configuration for Ca is _____.

Accepted Answer

The answer of The full electronic configuration for Ca is...

Question 16

Which of the following configurations is the electron configuration for Cr?

Accepted Answer

A)  [Ar]4s13d5 
B)  [Ar]3d44s2 
C)  [Ar]3d34s2 
D)  [Ar]3d6 
A)  [Ar]4s13d5 
B)  [Ar]3d44s2 
C)  [Ar]3d34s2 
D)  [Ar]3d6

Question 17

Neon has three isotopes as shown in the table.
   Calculate the atomic mass of neon. Include all digits in your answer.

Accepted Answer

The answer of Neon has three isotopes as shown in...

Question 18

Explain the difference between the law of conservation of mass and the law of definite proportions.

Accepted Answer

The law of conservation of mass states t

Question 19

Which scientist was responsible for the discovery of the nucleus?

Accepted Answer

A)  Chadwick 
B)  Dalton 
C)  Rutherford 
D)  Thomson 
A)  Chadwick 
B)  Dalton 
C)  Rutherford 
D)  Thomson

How many protons are there in In-113?

Calculate the energy emitted from a neon atom as it releases a photon of light with a wavelength of 9.582 nm.

Which type of spectrum is produced when light is passed through a prism?

Lanthanum has two isotopes: La-138 and La-139. Which of these isotopes has the highest natural abundance?

Which subatomic particle has the smallest mass and volume?

Argon has three isotopes: Argon-36, Argon-38, and Argon-40. Which of these isotopes has the highest natural abundance?

Chromium has four isotopes as shown in the table. Calculate the atomic mass of chromium. Include all digits in your answer.

The abbreviated electron configuration for Cs is _____________________.

The full electronic configuration for Br is _____.

Calculate the energy emitted from a potassium atom as it releases a photon of light with a frequency of 5.99 × 10¹⁵ Hz.

The abbreviated electron configuration for xenon is _________________.

Which two Greek philosophers had conflicting thoughts on the nature of the atom?

Which of the following statements is NOT a part of Dalton's atomic theory?

Explain how a line spectrum is made.

The full electronic configuration for Ca is _____.

Which of the following configurations is the electron configuration for Cr?

Neon has three isotopes as shown in the table. Calculate the atomic mass of neon. Include all digits in your answer.

Explain the difference between the law of conservation of mass and the law of definite proportions.

Which scientist was responsible for the discovery of the nucleus?

Introduction to Forensic Chemistry

Evidence Collection and Preservation

Chemical Evidence

Chemistry of Bonding:

Properties of Solutions I: Aqueous Solutions

Properties of Solutions Ii: Intermolecular Forces and Colligative Properties

Drug Chemistry

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Chemical Equilibrium and Poisons

Introduction to Biochemistry and Dna Analysis

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Exam 3: Atomic Clues

How many protons are there in In-113?

Calculate the energy emitted from a neon atom as it releases a photon of light with a wavelength of 9.582 nm.

Which type of spectrum is produced when light is passed through a prism?

Lanthanum has two isotopes: La-138 and La-139. Which of these isotopes has the highest natural abundance?

Which subatomic particle has the smallest mass and volume?

Argon has three isotopes: Argon-36, Argon-38, and Argon-40. Which of these isotopes has the highest natural abundance?

Chromium has four isotopes as shown in the table. Calculate the atomic mass of chromium. Include all digits in your answer.

The abbreviated electron configuration for Cs is _____________________.

The full electronic configuration for Br is _____.

Calculate the energy emitted from a potassium atom as it releases a photon of light with a frequency of 5.99 × 1015 Hz.

The abbreviated electron configuration for xenon is _________________.

Which two Greek philosophers had conflicting thoughts on the nature of the atom?

Which of the following statements is NOT a part of Dalton's atomic theory?

Explain how a line spectrum is made.

The full electronic configuration for Ca is _____.

Which of the following configurations is the electron configuration for Cr?

Neon has three isotopes as shown in the table. Calculate the atomic mass of neon. Include all digits in your answer.

Explain the difference between the law of conservation of mass and the law of definite proportions.

Which scientist was responsible for the discovery of the nucleus?

Introduction to Forensic Chemistry

Evidence Collection and Preservation

Chemical Evidence

Chemistry of Bonding:

Properties of Solutions I: Aqueous Solutions

Properties of Solutions Ii: Intermolecular Forces and Colligative Properties

Drug Chemistry

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Chemical Equilibrium and Poisons

Introduction to Biochemistry and Dna Analysis

Filters

Calculate the energy emitted from a potassium atom as it releases a photon of light with a frequency of 5.99 × 10¹⁵ Hz.