Chem test: covalent bonding

Group 13 elements tend to acquire which charge when they form ions?

+3

What is the charge that results when oxygen becomes an ion

-2

Flourine belongs to group 17. How many covalent bonds are formed between two Flourine atoms?

1

How many single covalent bonds can halogens form?

1

Multiple covalent bonds consist of what?

1 sigma bond and 1 pi bond

Correct formula for compound formed between beryllium and nitrogen

Be3N2

Not all of the carbon carbon bond lengths in a benzene molecule ( that shows resonance) are identical

False

Poly atomic ions are particles made of several different ions

False

The bond angle for a tetrahedral molecule with the sp3 hybridized orbitals is always a right angle

False

When an atom gains electrons, it becomes positively charged

False

Group on periodic table that generally has the highest electronegativity

Group 17

Pi bonds are ____ than sigma bonds

Less

Name of anionPO4 3-

Phosphate

What is the correct name for the compound PCl5

Phosphorus pentachloride

What is the formula for the compound sulfur hexachloride?

SCl6

What type of bond has one pair of electrons shared between atoms?

Single covalent

Correct name for compound Na3P

Sodium phosphide

What molecular shape does the compound CF4 have

Tetrahedral

A sigma bond is formed between two atoms when the valence atomic orbital of one atom overlaps end to end ( straight bond) with that of the other Atom

True

An expanded octet is possible using the d orbital of an element

True

An ionic bond is an electrostatic force that holds together oppositely charged atoms in a compound

True

An oxyacid is composed of a hydrogen atom bonded to a polyatomic anion.

True

Elctronegativity is the ability of an atom to attract an electron.

True

Elements in the s or p blocks generally have only one common oxidation number, while the d block elements can have more than one possible oxidation number

True

In covalent compounds, atoms become chemically stable by sharing their valence electrons.

True

Noble gases are generally non reactive because they already have a complete valence shell

True

How Many single covalent bonds can form?

4

How many pi bonds are in a triple covalent bond?

2

In the compound PCl3 how many total valence electrons are present?

26

How many pairs of bonding electrons are present Ina molecule that displays trigonal bipyramidal molecular shape?

5

The name of a oxyacid has the suffix -ic acid. What is the suffix of the oxyanion?

Ate

Correct name for compound CaClO2?

Calcium chlorate

Chemical bond formation may take place due to the interaction between an ____ and anion

Cation

Lithide is the name of the positive ion formed when lithium loses an electron

False

Correct name for compound CoCO3

Cobalt (II) carbonate

Correct formula for the compound chromium (II) nitrate?

Cr(NO3)2

Electrons that are free to move in a metal are referred to as ___ electrons

Delocalized.

What is the correct name for the compound N2O4?

Dinitrogen tetroxide

A cation is a negatively charged atom

False

All compounds with polar covalent bonds are polar molecules

False

Because of the number of neg ions packed around each pos ion in a crystal lattice ionic compounds are good conductors of electricity and heat in their solid state.

False

Electrons in a polar covalent bond are shared equally between the two atoms forming the bond.

False

Correct formula for the compound phosphoric acid

H3PO4

Correct name for acid HBr?

Hydrobromic acid

Name of the acid HCl

Hydrochloric acid

What type of bond has an electronegativity difference greater than 1.7?

Ionic

Correct name for the compound FeS

Iron (II) sulfide

Correct formula for compound formed between magnesium and phosphate ion?

Mg3(PO4)2

Correct formula for compound manganese(II) fluoride

MnF3

What is the correct formula for the compound dinitrogen monoxide?

N2O

When a chemical bond is formed, the constituent atoms acquire the valence electrons configuration of noble gases. This rule is the

Octet rule

In naming of compound PCl5, the prefix used with the second element is

Penta

Name of p anion ClO-4

Perchlorate

The second part of the name of the compound NF3 is

Trifluoride

A metallic bond is the attraction of a metallic cation for Delocalized electrons.

True