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Naming compounds and writing formulae
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Which of the following correctly provides the name of the element, the symbol for the ion, and the name of the ion?
fluorine, F, fluoride ion
sulfur, S, sulfurous ion
copper, Cu, cuprous ion
zinc, Zn, zincate ion
Determine the subscript for ammonium in the chemical formula for ammonium dichromate.
What is the charge on the polyatomic nitrite and chlorite ions?
Which of the following is true about the composition of ionic compounds?
They are formed from two or more nonmetallic elements.
They are composed of anions and cations.
They are composed of anions only.
They are composed of cations only.
consists of a single atom with a positive or negative charge
What is the charge on the cation in Calcium sulfate
The ions formed by nonmetals in Groups 6A and 7A
have a numerical charge that is found by subtracting 8 from the group number.
all have a numerical charge of –1.
have a numerical charge that is found by subtracting the group number from 8.
all have a name that ends in -ate.
atom or group of atoms having a positive charge
tightly-bound group of atoms that behaves as a unit and carries a net charge
In which of the following are the symbol and name for the ion given correctly?
Sn: stannic ion; Sn: stannous ion
Fe: ferrous ion; Fe: ferric ion
Pb: lead ion; Pb: lead(IV) ion
Co: cobalt(II) ion; Co: cobaltous ion
When Group 2A elements form ions, they
gain two electrons.
lose two electrons.
gain two protons.
lose two protons.
When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a
superscript after the name.
Roman numeral following the name
What type of ions have names ending in -ide?
only metal ions
only gaseous ions
What is the charge on the sulfate ion
What is the correct name for the N ion?
Write the charge of an chloride ion.
Aluminum is a group 3A metal. Which ion does A1 typically form?
atom or group of atoms having a negative charge
How are chemical formulas of binary ionic compounds generally written?
subscripts first, then ions
cation on left, anion on right
anion on left, cation on right
Roman numeral first, then anion, then cation
Which of the following determines that an element is a metal?
the molecules that it forms
whether it loses valence electrons
the magnitude of its charge
when it is a Group A element
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