Introductory Chemistry: An Active Learning Approach
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN: 9781305079250
Author: Mark S. Cracolice, Ed Peters
Publisher: Cengage Learning
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Chapter 11, Problem 46E
Interpretation Introduction

(a)

Interpretation:

The element having the electron configuration [He]2s22p2 is to be identified.

Concept introduction:

Electronic configuration represents the arrangement of electrons in an atom. The sublevels are filled according to their increasing energy. The electrons are firstly filled into the sublevel having the lowest energy. The sublevel closest to the nucleus has the lowest energy. The trend of filling of electrons according to the energy of sublevels is given below.

1s<2s<2p<3s<3p<4s<3d<4p<5s<4d<5p<6s

The electronic configuration up to the electronic configuration of the last noble gas is represented with the symbol of noble gas in square brackets. This notation is known as core notation.

Expert Solution
Check Mark

Answer to Problem 46E

The element having the electron configuration [He]2s22p2 is carbon.

Explanation of Solution

The given electron configuration is [He]2s22p2. This gives total number of electrons as the sum of electrons in helium (2), 2 electrons in sublevel 2s and 2 electrons in shell 2p which is equivalent to 6. The atomic number of an element is equivalent to the number of electrons or protons. Therefore, the atomic number of element having configuration [He]2s22p2 is 6.

The element having atomic number 6 is carbon.

Therefore, the element having the electron configuration [He]2s22p2 is carbon.

Conclusion

The element having the electron configuration [He]2s22p2 is carbon.

Interpretation Introduction

(b)

Interpretation:

The element having the electron configuration [Ne]3s23p5 is to be identified.

Concept introduction:

Electronic configuration represents the arrangement of electrons in an atom. The sublevels are filled according to their increasing energy. The electrons are firstly filled into the sublevel having the lowest energy. The sublevel closest to the nucleus has the lowest energy. The trend of filling of electrons according to the energy of sublevels is given below.

1s<2s<2p<3s<3p<4s<3d<4p<5s<4d<5p<6s

The electronic configuration up to the electronic configuration of the last noble gas is represented with the symbol of noble gas in square brackets. This notation is known as core notation.

Expert Solution
Check Mark

Answer to Problem 46E

The element having the electron configuration [Ne]3s23p5 is chlorine.

Explanation of Solution

The given electron configuration is [Ne]3s23p5. This gives total number of electrons as the sum of electrons in neon (10), 5 electron in sublevel 3p and 2 electrons in sublevel 3s which is equivalent to 17. The atomic number of an element is equivalent to the number of electrons or protons. Therefore, the atomic number of element having configuration [Ne]3s23p5 is 17.

The element having atomic number 17 is chlorine.

Therefore, the element having the electron configuration [Ne]3s23p5 is chlorine.

Conclusion

The element having the electron configuration [Ne]3s23p5 is chlorine.

Interpretation Introduction

(c)

Interpretation:

The element having the electron configuration [Ar]4s23d104p3 is to be identified.

Concept introduction:

Electronic configuration represents the arrangement of electrons in an atom. The sublevels are filled according to their increasing energy. The electrons are firstly filled into the sublevel having the lowest energy. The sublevel closest to the nucleus has the lowest energy. The trend of filling of electrons according to the energy of sublevels is given below.

1s<2s<2p<3s<3p<4s<3d<4p<5s<4d<5p<6s

The electronic configuration up to the electronic configuration of the last noble gas is represented with the symbol of noble gas in square brackets. This notation is known as core notation.

Expert Solution
Check Mark

Answer to Problem 46E

The element having the electron configuration [Ar]4s23d104p3 is arsenic.

Explanation of Solution

The given electron configuration is [Ar]4s23d104p3. This gives total number of electrons as the sum of electrons in argon (18), 10 electrons in sublevel 3d, 3 electrons in sublevel 4p and 2 electrons in sublevel 4s which is equivalent to 33. The atomic number of an element is equivalent to the number of electrons or protons. Therefore, the atomic number of element having configuration [Ar]4s23d104p3 is 33.

The element having atomic number 33 is arsenic.

Therefore, the element having the electron configuration [Ar]4s23d104p3 is arsenic.

Conclusion

The element having the electron configuration [Ar]4s23d104p3 is arsenic.

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Chapter 11 Solutions

Introductory Chemistry: An Active Learning Approach

Ch. 11 - Prob. 11ECh. 11 - Prob. 12ECh. 11 - Prob. 13ECh. 11 - Prob. 14ECh. 11 - Prob. 15ECh. 11 - Prob. 16ECh. 11 - Prob. 17ECh. 11 - Prob. 18ECh. 11 - Prob. 19ECh. 11 - How many sublevels are there in an atom with n=4?Ch. 11 - Prob. 21ECh. 11 - Prob. 22ECh. 11 - Prob. 23ECh. 11 - Prob. 24ECh. 11 - The principal energy level with n=6 contains six...Ch. 11 - Although we may draw the 4s orbital with the shape...Ch. 11 - Prob. 27ECh. 11 - Prob. 28ECh. 11 - Prob. 29ECh. 11 - Prob. 30ECh. 11 - Prob. 31ECh. 11 - Prob. 32ECh. 11 - Prob. 33ECh. 11 - Prob. 34ECh. 11 - Prob. 35ECh. 11 - Is the quantum mechanical model of the atom...Ch. 11 - Prob. 37ECh. 11 - Prob. 38ECh. 11 - What element has the electron configuration...Ch. 11 - Prob. 40ECh. 11 - Prob. 41ECh. 11 - What is meant by [Ne] in [Ne]3s23p1?Ch. 11 - Prob. 43ECh. 11 - Prob. 44ECh. 11 - Prob. 45ECh. 11 - Prob. 46ECh. 11 - Prob. 47ECh. 11 - Prob. 48ECh. 11 - Prob. 49ECh. 11 - Prob. 50ECh. 11 - Prob. 51ECh. 11 - Prob. 52ECh. 11 - Use a noble gas core to write the electron...Ch. 11 - a Write the complete ground state electron...Ch. 11 - 55. Why are valence electrons important?Ch. 11 - Prob. 56ECh. 11 - Prob. 57ECh. 11 - Prob. 58ECh. 11 - Prob. 59ECh. 11 - Prob. 60ECh. 11 - Prob. 61ECh. 11 - . Using only the periodic table, arrange the...Ch. 11 - Prob. 63ECh. 11 - Prob. 64ECh. 11 - Prob. 65ECh. 11 - Prob. 66ECh. 11 - Prob. 67ECh. 11 - Using only the periodic table, arrange the...Ch. 11 - Prob. 69ECh. 11 - Using only the periodic table, arrange the...Ch. 11 - Prob. 71ECh. 11 - Give the symbol for an element that is: a a...Ch. 11 - Prob. 73ECh. 11 - a What is the name of the alkali metal that is in...Ch. 11 - Prob. 75ECh. 11 - Which of the following describes the element Ba?...Ch. 11 - Prob. 77ECh. 11 - Which of the following describes the element Br?...Ch. 11 - Prob. 79ECh. 11 - Prob. 80ECh. 11 - Prob. 81ECh. 11 - Prob. 82ECh. 11 - Prob. 83ECh. 11 - Prob. 84ECh. 11 - Prob. 85ECh. 11 - Prob. 86ECh. 11 - Prob. 87ECh. 11 - Prob. 88ECh. 11 - Prob. 89ECh. 11 - Prob. 90ECh. 11 - Prob. 91ECh. 11 - Determine whether each statement that follows is...Ch. 11 - Prob. 93ECh. 11 - Prob. 94ECh. 11 - Prob. 95ECh. 11 - Prob. 96ECh. 11 - Prob. 97ECh. 11 - Prob. 98ECh. 11 - Prob. 99ECh. 11 - Prob. 100ECh. 11 - Prob. 101ECh. 11 - Prob. 102ECh. 11 - Prob. 103ECh. 11 - Prob. 104ECh. 11 - Prob. 105ECh. 11 - Prob. 106ECh. 11 - Prob. 107ECh. 11 - Prob. 108ECh. 11 - Prob. 109ECh. 11 - Prob. 11.1TCCh. 11 - Prob. 11.2TCCh. 11 - Prob. 11.3TCCh. 11 - Prob. 11.4TCCh. 11 - Prob. 11.5TCCh. 11 - Prob. 1CLECh. 11 - Prob. 2CLECh. 11 - Prob. 3CLECh. 11 - Prob. 4CLECh. 11 - Prob. 5CLECh. 11 - Prob. 6CLECh. 11 - Prob. 7CLECh. 11 - Prob. 8CLECh. 11 - Prob. 9CLECh. 11 - Write the electron configuration of the highest...Ch. 11 - Prob. 2PECh. 11 - Prob. 3PECh. 11 - Prob. 4PECh. 11 - Prob. 5PECh. 11 - Prob. 6PECh. 11 - Prob. 7PE
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