Vocabulary
Vocabulary
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Electron Configurations for Ions
Formulas for Ionic Compounds
100

A positive ion.

What is a cation?

100

Group 17

What group makes a -1 ion?

100

The electron configuration of the nitride ion.

What is 1s22s22p6?

100

The formula for sodium fluoride.

What is NaF?

200

A negative ion.

What is an anion?


200

Group 16

What group makes a -2 ion?

200

The electron configuration of the calcium ion.

What is 1s22s22p63s23p6?

200

The formula for barium oxide.

What is BaO?

300

The electrons in the highest occupied energy level of an element’s atoms

What are valence electrons?

300

Group 2

What group makes a +2 ion?

300

The electron configuration of the phosphide ion.

What is 1s22s22p63s23p6?

300

The formula for lithium sulfide.

What is Li2S?

400

is the lowest whole-number ratio of ions in an ionic compound

What is a formula unit?

400

A symbolism used in chemistry that shows the number of valence electrons around the atomic symbol of the element. 

What is an electron dot (Lewis) structure?

400

Group 1

What group makes a +1 ion?

400

The electron configuration of the lithium ion.

What is 1s2?

400

The formula for beryllium bromide.

What is BeBr2?

500

In cases where transition metals are not likely to have the same configuration as a noble gas due to the large number of electrons lost or gained, this is a favorable outcome that works similar to an octet.

What is a pseudo noble-gas electron configuration? 

500

Model to explain the purpose or rule of atoms to react by either gaining or losing electrons in order to have the stable electron structure of a noble gas

What is the octet rule?

500

The formula for calcium phosphide.

What is Ca3P2?

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