Why are compounds composed of integer ratios of elements? it’s because of the octet partially and it’s because ions form partially. Certain types of elements form ionic bonds. These are incomplete. Really it’s not until we combine the ideas of ions, octet rule, what types of elements from ionic bonds, and Lewis dot structures with a actual model of electrons moving that also depicts the real mechanism of ionic bonding that we can thoroughly answer the question. Therefore use what’s above to elaborate.The model below will help you answer the question. Chemical Bonding EWriting Formulas for Neutral loWhich of the following isthe correct formula forrubidium oxide?15+1 -2 -1A. RbOHB. RD₂02²-0=Ho-2-3C. RDO;2=-32=+4+1D. Rb₂ONML7IATISUHIM 1 2. The overall charge for the ionic compound must be neutral, which means the sum of the chargesfrom the cations and anions should add up to zero. We can use this rule to figure out theformula of an ionic compound when we know the charge on the anion and the cation. This rulecan also be useful for deducing the charge of an ion when the chemical formula for the ioniccompound is known.Example: Write the chemical formula for calcium hydroxide (calcium and hydroxide).Calcium is an alkaline earth metal in Group 2 on the periodic table, so it forms ions with a 2+ charge.From our table above, we know that hydroxide has the formula OH. Because calcium needs to losetwo valence electrons to satisfy the Octet Rule, and hydroxide can only take one valence electron, wewill need two hydroxide ions to exactly cancel the 2+ charge on the Ca²+ ion. When writing out theformula, we include parentheses around OH followed by a subscript of 2, to make it clear that there aretwo hydroxide ions for every Ca2+ cation. Thus, the chemical formula for the compound is Ca(OH)2.

Compounds are made of the combination of atoms or ions. They combine to fullfill octate. For this…

Answered: Which of the following is the correct…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Why are compounds composed of integer ratios of elements? it’s because of the octet partially and it’s because ions form partially. Certain types of elements form ionic bonds. These are incomplete. Really it’s not until we combine the ideas of ions, octet rule, what types of elements from ionic bonds, and Lewis dot structures with a actual model of electrons moving that also depicts the real mechanism of ionic bonding that we can thoroughly answer the question. Therefore use what’s above to elaborate. The model below will help you answer the question.

Chemical Bonding E
Writing Formulas for Neutral lo
Which of the following is
the correct formula for
rubidium oxide?
1
5
+1 -2 -1
A. RbO
H
B. RD₂02²-0
=
Ho-2-3
C. RDO;2=-3
2=+4
+1
D. Rb₂O
N
M
L
7
IA
TISUHIM 1

2. The overall charge for the ionic compound must be neutral, which means the sum of the charges
from the cations and anions should add up to zero. We can use this rule to figure out the
formula of an ionic compound when we know the charge on the anion and the cation. This rule
can also be useful for deducing the charge of an ion when the chemical formula for the ionic
compound is known.
Example: Write the chemical formula for calcium hydroxide (calcium and hydroxide).
Calcium is an alkaline earth metal in Group 2 on the periodic table, so it forms ions with a 2+ charge.
From our table above, we know that hydroxide has the formula OH. Because calcium needs to lose
two valence electrons to satisfy the Octet Rule, and hydroxide can only take one valence electron, we
will need two hydroxide ions to exactly cancel the 2+ charge on the Ca²+ ion. When writing out the
formula, we include parentheses around OH followed by a subscript of 2, to make it clear that there are
two hydroxide ions for every Ca2+ cation. Thus, the chemical formula for the compound is Ca(OH)2.

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