Lewis Structure, Bonds + Nomenclature Review

The ions in most ionic compounds are organized into a

• molecule

• crystal lattice

• Lewis Structure

• polyatomic ion

Tags

NGSS.HS-PS1-3

Ionic compounds are formed by ionic bonds between

• metals and metals

• transition metals

• nonmetals and nonmetals

• metals and nonmetals

Tags

NGSS.HS-PS1-3

Which of the following atom’s Lewis dot notation shows six valence electrons?

• nitrogen

• magnesium

• sulfur

• iodine

How many electrons do strontium atoms generally lose?

• 0

• 1

• 2

• 3

Tags

NGSS.HS-PS1-1

Cesium has an electronegativity value of 0.7 and fluorine has an electronegativity value of 4.0. Which of the following statements is true?

• Cesium has less of a tendency to attract electrons than fluorine.

• Fluorine repels electrons more than cesium.

• Cesium attracts electrons easier than fluorine.

• Fluorine has less of a tendency to attract electrons than cesium.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If atoms that share electrons have an unequal attraction for the electrons, the bond is called

• ionic

• polar

• nonpolar

• metallic

The melting points of ionic compounds are higher than the melting points of molecular compounds because

• ionic compounds are brittle.

• attractive forces between ions are stronger than the attractive forces between molecules.

• Ionic substances are all flammable.

• none of the above

Tags

NGSS.HS-PS2-4

Which of these compounds would have the highest melting point?

• NH₃

• OF₂

• H₂O

• NaCl

Tags

NGSS.MS-PS1-4

The chemical formula for water is H₂O. This formula is an example of a(n)

• Lewis Structure

• formula unit

• molecular formula

• ionic formula

Tags

NGSS.MS-PS1-1

Which of the following molecules has a single covalent bond?

• F₂

• CO₂

• N₂

• NO

Tags

NGSS.MS-PS1-1