Chapter 6-part 1 (Chemical Bonds)

In the compound sodium fluoride, NaF, the sodium atom loses one electron and the fluorine atom gains one electron to form ions that have electron configurations similar to

• helium

• oxygen

• neon

• calcium

In many compounds, atoms of main-group elements from ions so that the number of electrons in the outermost energy levels of each ion is

• 2

• 6

• 8

• 10

The electron configuration of nitrogen is 1s²2s²2p³. How many more electrons does nitrogen need to have an electron configuration similar to neon?

• 1

• 3

• 5

• 8

An anion

• is an ion with a negative charge

• attracts ions with negative charges

• results when an alkaline-earth metal loses one of its two outermost electrons

• has more protons than electrons

When the octet rule is satisfied, the outermost ___ are filled

• d and f orbitals

• s and p orbitals

• s and d orbitals

• d and p orbitals

The elements of the ___ group satisfy the octet rule without forming compounds

• halide

• noble gas

• alkali metal

• alkaline - earth metal

Once an atom has full s and p orbitals in its outermost energy level

• it is highly reactive only with alkali metal

• it is highly reactive only with halogens

• it can be combined with most elements

• it has a stable octet and unreactive

The energy released when a salt is formed from gaseous ions is called the

• bond energy

• potential energy

• lattice energy

• energy of crystallization

The lattice energy is a measure of the

• strength of an ionic bond

• strength of a metallic bond

• strength of a covalent bond

• energy of crystallization

In a crystal of an ionic compound, each cation is surrounded by

• molecules

• positive ions

• dipoles

• anions