Writing and Naming of Compounds

Which of these combinations of elements is an ionic compound made up of?

• metal and nonmetal

• metal and metal

• nonmetal and nonmetal

• metal and metalloid

Answer explanation

Ionic compounds are always made up of METAL element and NONMETAL element.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When naming ionic compounds with transition metals, you need to include roman numerals to show the ________ of the metal.

• atomic number

• ionic charge

• mass number

Answer explanation

Ionic charge is what represents the Roman Numeral.

example.

Fe+2 --> iron (II)

Cu+1 --> copper (I)

When naming an ionic compound, which of these is written first?

• Metal

• Nonmetal

• anion

Answer explanation

Metal element is always written first, the nonmetal element last.

When naming an ionic compound, what must the last part be?

• the nonmetal element with the "ide" at the end

• the name of the nonmetal element

• the metal element

• the metal element with the "ide" at the end

Answer explanation

The NONMETAL in "ide" form.

Example:

oxygen --> oxide

nitrogen --> nitride

fluorine --> fluoride

bromine --> bromide

iodine --> iodide

hydrogen --> hydride

chlorine -> chloride

When a metal participates in ionic bonding, it

• gains electrons, becomes negatively charged

• loses electrons, becomes positively charged

Answer explanation

The METAL element always gives away electrons. Consequently, it becomes a positively charged ion.

Tags

NGSS.HS-PS1-2

When a nonmetal participates in ionic bonding, it

• gains electrons, becomes negatively charged

• loses electrons, becomes positively charged

Answer explanation

The NONMETAL always RECEIVES electrons. Consequently, it becomes negatively charged.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The chemical formula NaBr is called

• sodium bromine

• sodium bromide

• sodium bromite

• bromine sodium

Answer explanation

In naming an ionic compound, name the metal element first and name the nonmetal element in the "ide" form.

metal --> Sodium

nonmetal in "ide" --> Bromide

Tags

NGSS.MS-PS1-1

The chemical formula BeCl₂ is called

• Beryllium Chloride

• Beryllium Chlorine

• Beryllium (II) Chloride

Answer explanation

In naming an ionic compound, name the metal element first and name the nonmetal element in the "ide" form.

metal --> Beryllium

nonmetal in "ide" --> Chloride

The chemical formula CaO is called

• calcium oxide

• calcium oxygen

• calcium (II) oxide

Answer explanation

In naming an ionic compound, name the metal element first and name the nonmetal element in the "ide" form.

metal --> Calcium

nonmetal in "ide" --> Oxide

The chemical formula Mg₃N₂ is called

• Magnesium Nitride

• Magnesium Nitrogen

• Magnesium (II) Nitride

Answer explanation

In naming an ionic compound, name the metal element first and name the nonmetal element in the "ide" form.

metal --> Magnesium

nonmetal in "ide" --> Nitride