General Chemistry
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Which of the following illustrates S2− (an S atom with two negative charges)?
Which of the following illustrates Mg2+ (an Mg atom with two positive charges)?
In the following ions, what is the identity of element X?
(a) X− (anion, 18 electrons)
(b) X+ (cation, 18 electrons)
The following image shows a reaction between a metal and a nonmetal:
Identify which one of the two spheres is a nonmetal.
If six electrons were removed from tungsten, 184W, write the symbol of the ion formed.
Complete the following table by providing the missing information:
What charge should Mn have to be isoelectronic with V5+ if Mn2+ is isoelectronic with V?
Determine the neutral atom isoelectronic with B3-
Count the number of electrons and protons in the cobalt ion Co3+
How many protons and electrons are in At-?
Provide missing values.
Symbol Ion # of Electrons in Ion # of Protons in Ion._ Ga3+ _ 31Ba Ba2+ _ _F _ _ 9Po _ 86 _
The subatomic particles in ions are different in the number of
The number of electrons and charge cobalt(II)
The number of each subatomic particle in 24Mg2+ are:
Identify the number of protons in an ion with a -2 charge and 82 electrons.
Identify the number of electrons in a Fe3+ ion.
Answer the fourth row of the table.
Identify the set that has all species with the same number of electrons. What do we call this type of relationship?
a. Rb+, Kr, Sr2+
b. C, N3-, F-
c. Na+, Sr2+, Ba2+
What is the term used to describe an atom that has lost or gained an electron?
Which specific characteristic distinguishes ions from atoms?
Ions have a corresponding neutral atom with the same number of electrons. Identify the neutral atom that is isoelectronic with Al2+.
Identify the number of electrons and protons in Zn2+.