Chem final

Hydrogen has "blank" electron available for bonding.

1

Alloys are mixtures composed of "blank" at least one of which is a metal.

2 or more elements

How many electrons will a phosphorus atom (P) gain in order to get a noble gas configuration?

3

Carbon has "blank" electrons available for bonding.

4

Nitrogen has "blank" electrons available for bonding.

5

How many valence electrons are in atom of sulfur (atomic #16)

6

Oxygen has "blank" electrons available for bonding.

6

All of the halogens have "blank" electrons available for bonding.

7

Lewis fit structures for individual atoms can have no more than "blank" dots in the notation.

8

In metallic bonding, the valence electrons of all atoms are shared as:

A "sea of electrons"

Which of the following is/are diatomic?

B. Chlorine D. Hydrogen

Which of the following the correct compound formula for barium sulfide?

BaS

Students know atoms combine to form molecules by sharing electrons to form "blank bonds or by metallic bonds in which actions interact with a sea of "blank" or by exchanging electrons to form "blank" bonds.

Covalent. Electrons. Ionic.

Network solids, like diamond, are solids in which all of the atoms are "blank"

Covalently bonded

Most ionic compounds are "blank" at room temperature, have high "blank" and can conduct an "blank" when melted or dissolved in water.

Crystalline solid. Melting/boiling point. Electric current.

A "blank" molecule is a molecule consisting of two atoms.

Diatomic ex: O2 K2 H2 F2 Cl2 I2 Br2

A bond that involves two shared pairs of electrons is a "blank"

Double bond

Although composed of ions, ionic compounds are "blank"

Electrically neutral

Students know how to use the periodic table to determine the number of "blank" Available for bonding.

Electrons

Elements in the same "blank" have the same number of electrons available for bonding.

Group

Molecules are attracted to other molecules by "blank"

Intermolecular Attractive Forces

Bonds between metal and nonmetals are generally:

Ionic

Test hint: the word "salt" ALWAYS refers to "blank" bonding.

Ionic

The bond between lithium (atomic #3) and oxygen is:

Ionic

When metals bond with nonmetals, the bond will be "blank"

Ionic

I'm most metals, the atoms are arranged in a "blank" pattern

Lattice

Molecular compounds tend to have "blank" melting and boiling points than ionic compounds.

Low

Bonds between atoms of metals are generally:

Metallic

When metals bond with metals, the bond will be "blank"

Metallic

A compound composed of molecules is called a "blank"

Molecular compound

A "blank" is the chemical formula of a molecular compound that shows how many atoms of each element a molecule contains.

Molecular formula

The molecular formula for ammonia is "blank"

NH3

Which of the following is the correct compound formula for sodium oxide?

Na2O

Elements bond so that each element obtains the electron configuration of a "blank" gas. For hydrogen this means "blank" electrons; for other nonmetals it means "blank" electrons (sometimes referred to as the "blank" rule). A single covalent bond represents one "blank" of shared electrons.

Noble. 2. 8. Octect. Pair.

A molecular compound usually consists of two or more "blank" atoms.

Nonmetal

Electrostatic attraction = "blank" attract

Opposite changes

Valence electrons are

Outer-shell electrons

Most ionic compounds form

Solids

What is the chemical formula for the ion formed when strontium (atomic number 38) loses its valence electrons?

Sr2+

A "blank" show how atoms of a molecular formula are connected to each other.

Structural formula

Alloys are important because their properties are often "blank"

Superior

A bond that involves three shared pairs of electrons is a "blank"

Triple bond

Electrons available for bonding are called "blank" electrons.

valence

Students know salt crystals, such as NaCl, are repeating patterns of "blank" and "blank" ions held together by "blank" attraction

Cation. Anion. Electrostatic.

Bonds between nonmetals and other nonmetals are generally:

Covalent

Students no chemical bonds between Adams and molecules such as H2, CH4, NH3, H2CCH2, N2, Cl2, and many large biological molecules are "blank". *hint* the word molecule always refers to covalent bonding

Covalent

When nonmetals bond with nonmetals the bond will be "blank"

Covalent

The bond existing between the atoms of iron (atomic #26) in a piece of iron is:

Metallic

The octet rule explains the stability of most covalently bonded molecules in terms of:

Noble-has configurations