Atoms, Bonding, and the periodic table Chapter 3

What is a double bond?

• A bond between two atoms.

• One pair of electrons shared between two atoms

• Two pairs of electrons shared between two atoms

• Two pairs of electrons shared between four atoms

A metal crystal consists of positively charged metal ions embedded in a "sea" of freely moving ______.

Which of the following terms means that metals can be rolled into thin sheets, as in aluminum foil, or beaten into complex shapes?

• polar

• ductile

• alloy

• malleable

A low melting point is one property of molecular compounds.

• True

• False, ionic

• False, metallic

• False, all

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• positive atom

Ionic compounds that dissolve in water conduct electricity because they break into ____________________ that move freely.

What is the group number of the group containing the most reactive nonmetals.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is a property shared by most molecular compounds?

• high boiling point

• low melting point

• high melting point

• nonpolar bonds

What kind of bond forms between sodium and chlorine in sodium chloride (NaCl)?

• metallic bond

• covalent bond

• molecular bond

• ionic bond

The properties of solid metals can be explained by the structure of and the bonding among the metal atoms.

• True

• False, ionic properties

• False, luster

• False, alloy

Tags

NGSS.HS-PS1-3