CHEM:INTRO.TO GENERA W/MAST CHEM
CHEM:INTRO.TO GENERA W/MAST CHEM
4th Edition
ISBN: 9781269903462
Author: Timberlake
Publisher: PEARSON C
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Question
Chapter 6, Problem 6.75UTC

(a)

Interpretation Introduction

To explain: The formation of magnesium ion by octet rule.

(a)

Expert Solution
Check Mark

Answer to Problem 6.75UTC

Solution: Magnesium loses two electrons for the formation of magnesium ion (Mg2+)to get stable noble gas configuration.

Explanation of Solution

According to the octet rule, atoms either accept or lose electrons to acquire stable noble gas configuration or completing their octets. Octet means a full set of eight valence electrons.

The number of electrons an atom can accept or lose depends on the valence electrons present in its neutral state. After accepting or losing electrons it will form ions which can be positively or negatively charged.

In the case of magnesium atom, the electronic configuration of magnesium atom is [Ne]3s² so magnesium atom can lose two electrons to form a stable noble gas configuration similar to the configuration of neon atom. It can also gain 6 electrons to form a noble gas configuration of Argon atom. The former requires fewer transfer of electrons, so, Mg2+ is formed rather than Mg6 .

Conclusion

By the octet rule, Mg2+ is more prevalent form of magnesium ion.

(b)

Interpretation Introduction

To determine: Which noble gas has the same electron arrangement as the magnesium ion.

(b)

Expert Solution
Check Mark

Answer to Problem 6.75UTC

Solution: The noble gas that has the same electron arrangement as the magnesium ion is the neon gas with atomic symbol Ne.

Explanation of Solution

The electronic configuration of magnesium atom is as follows:

   1s22s22p63s2

Magnesium ion is formed by losing two electrons the resultant electronic configuration will be:

  1s22s22p6

This is also the electron configuration of noble gas, Neon with atomic symbol Ne.

Conclusion

The noble gas with the electron configuration of magnesium ion is Neon.

(c)

Interpretation Introduction

To Explain: The large amount of formation of compounds with elements of Group 1A(1) and Group 2A(2) but not Group 8A (18) elements.

(c)

Expert Solution
Check Mark

Answer to Problem 6.75UTC

Solution: Group 1A (1) and Group 2A(2) elements are found to be more reactive than Group 8 A(18) elements because Group1A and Group 2A tend to lose electrons as they have 1 and 2 electrons respectively in their outermost orbital. They lose these electrons to obtain noble gas configuration as per the octet rule. Group 8A elements are un-reactive or inert in nature because they already have complete octet.

Explanation of Solution

All elements try to obtain 8 valence electrons in their outer shell as per the octet rule. Group 1A includes hydrogen, lithium, sodium, potassium, rubidium, cesium and francium. All these elements have one electron in their outermost shell, which they try to lose to obtain the noble gas configuration. Group 2A has beryllium, magnesium, calcium, strontium, barium and radium. All these elements have two electrons in their outermost shell, which they try to lose to obtain the noble gas configurations.

Group 8A elements are noble gas elements consisting of helium, neon, argon, krypton and xenon which have 8 electrons each in their valence shell, so they are very stable. Hence, they are usually not reactive in nature and are also knownas inert elements.

Conclusion

Group 1A and Group 2A elements are more reactive than Group 8A elements.

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Chapter 6 Solutions

CHEM:INTRO.TO GENERA W/MAST CHEM

Ch. 6.2 - Write the correct ionic formula for the compound...Ch. 6.2 - Write the correct ionic formula for the compound...Ch. 6.2 - Write the symbols for the ions, and the correct...Ch. 6.2 - Write the symbols for the ions, and the correct...Ch. 6.3 - Prob. 6.15QAPCh. 6.3 - Prob. 6.16QAPCh. 6.3 - Write the name for each of the following ions...Ch. 6.3 - Prob. 6.18QAPCh. 6.3 - Write the name for each of the following ionic...Ch. 6.3 - Prob. 6.20QAPCh. 6.3 - Prob. 6.21QAPCh. 6.3 - Prob. 6.22QAPCh. 6.3 - Prob. 6.23QAPCh. 6.3 - Write the formula for each of the following ionic...Ch. 6.3 - Prob. 6.25QAPCh. 6.3 - Prob. 6.26QAPCh. 6.4 - Write the formula including the charge for each of...Ch. 6.4 - Prob. 6.28QAPCh. 6.4 - Prob. 6.29QAPCh. 6.4 - Prob. 6.30QAPCh. 6.4 - Prob. 6.31QAPCh. 6.4 - Prob. 6.32QAPCh. 6.4 - Write the correct formula for the following ionic...Ch. 6.4 - Write the correct formula for the following ionic...Ch. 6.4 - Prob. 6.35QAPCh. 6.4 - Prob. 6.36QAPCh. 6.5 - Prob. 6.37QAPCh. 6.5 - Prob. 6.38QAPCh. 6.5 - Prob. 6.39QAPCh. 6.5 - Prob. 6.40QAPCh. 6.5 - Name each of the following molecular compounds:...Ch. 6.5 - Prob. 6.42QAPCh. 6.5 - Prob. 6.43QAPCh. 6.5 - Name each of the following molecular compounds: a....Ch. 6.5 - Write the formula for each of the following...Ch. 6.5 - Write the formula for each of the following...Ch. 6.5 - Write the formula for each of the following...Ch. 6.5 - Write the formula for each of the following...Ch. 6.5 - Prob. 6.49QAPCh. 6.5 - Prob. 6.50QAPCh. 6.6 - Describe the trend in electronegativity as...Ch. 6.6 - Prob. 6.52QAPCh. 6.6 - Using the periodic table, arrange the atoms in...Ch. 6.6 - Using the periodic table, arrange the atoms in...Ch. 6.6 - Predict whether each of the following bonds is...Ch. 6.6 - Predict whether each of the following bonds is...Ch. 6.6 - For each of the following bonds, indicate the...Ch. 6.6 - For each of the following bonds, indicate the...Ch. 6.7 - Choose the shape (1 to 6) that matches each of the...Ch. 6.7 - Prob. 6.60QAPCh. 6.7 - Prob. 6.61QAPCh. 6.7 - Complete each of the following statements for a...Ch. 6.7 - Prob. 6.63QAPCh. 6.7 - Prob. 6.64QAPCh. 6.7 - Prob. 6.65QAPCh. 6.7 - Prob. 6.66QAPCh. 6.7 - Prob. 6.67QAPCh. 6.7 - Prob. 6.68QAPCh. 6.7 - Prob. 6.69QAPCh. 6.7 - Prob. 6.70QAPCh. 6.8 - Prob. 6.71QAPCh. 6.8 - Prob. 6.72QAPCh. 6.8 - Prob. 6.73QAPCh. 6.8 - Prob. 6.74QAPCh. 6 - Prob. 6.75UTCCh. 6 - a. How does the octet rule explain the formation...Ch. 6 - Prob. 6.77UTCCh. 6 - Prob. 6.78UTCCh. 6 - Prob. 6.79UTCCh. 6 - Prob. 6.80UTCCh. 6 - Prob. 6.81UTCCh. 6 - Prob. 6.82UTCCh. 6 - Prob. 6.83UTCCh. 6 - Prob. 6.84UTCCh. 6 - Prob. 6.85UTCCh. 6 - 6.102 State the number of valence electrons,...Ch. 6 - Prob. 6.87AQAPCh. 6 - Prob. 6.88AQAPCh. 6 - Prob. 6.89AQAPCh. 6 - Prob. 6.90AQAPCh. 6 - Prob. 6.91AQAPCh. 6 - Prob. 6.92AQAPCh. 6 - Prob. 6.93AQAPCh. 6 - Prob. 6.94AQAPCh. 6 - Prob. 6.95AQAPCh. 6 - Prob. 6.96AQAPCh. 6 - Prob. 6.97AQAPCh. 6 - 6.120 Write the formula for each of the following...Ch. 6 - Prob. 6.99AQAPCh. 6 - Prob. 6.100AQAPCh. 6 - Prob. 6.101AQAPCh. 6 - Prob. 6.102AQAPCh. 6 - Prob. 6.103AQAPCh. 6 - Prob. 6.104AQAPCh. 6 - Prob. 6.105AQAPCh. 6 - Prob. 6.106AQAPCh. 6 - Prob. 6.107AQAPCh. 6 - Prob. 6.108AQAPCh. 6 - Prob. 6.109AQAPCh. 6 - Prob. 6.110AQAPCh. 6 - Prob. 6.111AQAPCh. 6 - Prob. 6.112AQAPCh. 6 - Prob. 6.113AQAPCh. 6 - Prob. 6.114AQAPCh. 6 - Prob. 6.115CQCh. 6 - Prob. 6.116CQCh. 6 - Prob. 6.117CQCh. 6 - Prob. 6.118CQCh. 6 - Prob. 6.119CQCh. 6 - Prob. 6.120CQCh. 6 - Prob. 7CICh. 6 - Prob. 8CICh. 6 - Prob. 9CICh. 6 - Prob. 10CICh. 6 - Prob. 11CICh. 6 - Of much concern to environmentalists is radon-222,...
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