Chemical Names and Formulas

How can you determine the charge of an ion formed by a element?

• The charge of the ion is the number of valence electrons minus the number of core electrons.

• The charge of the ion is related to the element's period number.

• An ion's charge is always 1/2 the atomic number.

• The charge of the ion formed is related to the element's group number.

Tags

NGSS.HS-PS1-1

What type of compound is made up of a metal and a nonmetal?

• Ionic
• Covalent
• Polyatomic

Tags

NGSS.HS-PS1-1

Ionic compounds are written with

• cation (+ ion) first then anion (- ion)
• anion (- ion) first then cation (+ ion)
• either way is fine
• polyatomic ions first

If an ionic compound contains a transition metal, Roman numerals are used to determine the _____.

• version of the isotope

• version of the ion

• order of appearance

• charge on the ion

Ionic compounds have prefixes in the chemical name

• True

• False

Chemical formulas have charges in them

• True

• False

Tags

NGSS.HS-PS1-3

What type of compound is made up of two nonmetals?

• Ionic
• Covalent
• Polyatomic

The correct name for P₂O₅ is

• potassium oxide

• dipotassium pentoxide

• diphosphorus pentoxide

• phosphorus oxide

According to the International Union of Pure and Applied Chemistry (IUPAC), The correct compound name of Fe₂(CO₃)₃ is

• iron carbonate

• Iron (II) carbonate

• diiron tricarbonate

• Iron (III) carbonate

The name of the compound Mg₃(PO₄)₂ is

• magnesium phosphate

• magnesium phosphite

• trimagnesium diphosphate

• magnesium (III) phosphate (II)