Chem 3

H3PO4

which of the following formulas represents a compound that is an acid

K and Br

which pair of elements is most likely to form an ionic compound if allowed to react together

ionization energy

the property defined as the energy required to remove one electron from an atom in the gaseous state is

one definition of a base is a substance that provides which ion water solution

OH-

which element will form an ion with the greatest positive charge

Al

what fourth period element is represented by the dot structure

Br

which of the following pairs will form ionic bonds with one another

Cs,Br

which one of the following is most likely to form and ion with -2

S

the HCO3 -1 ion is

hydrogen carbonate

which one of the following elements is most likely to form an ion with a -1 charge

Cl

a small negatively charged particle formed when an atom gains one or more electrons is called a

anion

what is the formula of the nitrate ion

NO3 -1

which is most likely to form a 2+ charge

Mg

the property that describes the ease with which an atom gives up an electron to form a positive ion

ionization energy

ionic compound form between calcium and sulfur

CaS

what is the formula of the sulfite ion

SO3 2-

a positively charged particle formed by loss of one or more electrons from an atom is called a

cation

main group elements that are metals usually ___ one or more electrons to form ___ which have a _____ charge

lose, cations, positive

the property defined as the energy released on adding an electron to an isolated gas phase atom is

electron affinity

the formula PO4 3- means that this ion is composed of

one atom of phosphorus, four atoms of oxygen, three extra electrons

what is the formula of the carbonate ion

CO3 2-

the name of Cl-

chloride ion

what is the formula of a compound formed by the ions M+ and X3-

M3X6

what is the most likely charge on an ion formed by an element with the valence electron configuration of ns1

1+

main group elements that are nonmetals usually ___ one or more electrons to form___ which have a ___ charge

gain, anion, negative

iron pyrite is Iron(II) sulfide. what if the formula

FeS

what is the formula of the ammonium ion

NH4+

One definition of an acid is a substance that provides which ion in water solution

H+

an element belonging to the halogen family would be expected to have a ___ ionization energy and a ___ electron affinity

large, large

the name of Cu 2+ is ___ ion

copper(II)

what is the name of AlCl3

aluminum chloride

one characteristic of a cation is that

is has more protons than electrons

the permanganate ion is composed of

one atom of manganese, four atoms of oxygen, and one extra electrons

the formula for ammonium hydroxide

NH4OH

the name of the compound with formula NaMnO4

sodium permanganate

which one of the compounds below is most likely to be ionic

SrBr2

in order to form an octet, an atom of selenium will

gain 2 electrons

when an atom donates an electrons that electron

is acquired by another atom which becomes an anion

the formula for potassium dichromate

K2Cr2O7

what is the formula for calcium phosphate

Ca3(PO4)2

an atom with 3 valence electrons, such as Al, will most likely

lose three electrons

the main group element F reacts with chlorine to form an ionic compound with the formula ECl2. the element E is a member of what group

2

which of the following has the largest ionization energy

Ne

the formula Ca(NO3)2 tells us that one formula unit of this compound is composed of ____ calcium atoms, ___ nitrogen atoms, and ___ oxygen atoms

one;two;six

what is the formula for the ionic compound formed between lithium and bromide

LiBr

which of the following formulas in incorrect for cobalt(III) compound

CoCO3

the correct Roman numeral for the chromium ion in the compound CrCl3 is

III

a formula unit of ammonium sulfate consists of ___ ammonium ions and ___ sulfate

two; one

what is the name of K2S

potassium sulfide