Metallic Bonds

Malleability and ductility are characteristics of compounds with

• covalent bonds

• metallic bonds

• ionic bonds

• alloy bonds

Why are metals good conductors?

• they have mobile electrons

• they have mobile atoms

• they have crystal structures that can rearrange

• they have mobile protons

Tags

NGSS.HS-PS1-3

Malleability means

• the ability to be drawn into a wire

• the electrons of metals are mobile

• the ability to be hammered into a shape

• the ability to be a conductor of electricity

Metals are ductile because metallic bonds

• hold the layers of ions in rigid positions

• maximizes the repulsive force in a metal

• allows planes of protons and electrons to slide past one another

• are easily broken

Metals are hard because metals have a

• sea of electrons that tightly hold the nuclei together

• they form triple bonds

• low melting point

• high luster

Tags

NGSS.HS-PS1-3

Which types of elements become cations?

• nonmetals

• metals

• only transition metals

• metalloids

In metals, the _______ electrons form a shared sea of electrons.

• negative

• core

• valence

• positive

A metallic bond is a bond between ________.

• nonmetals

• metals

• transition metals

• metalloids

What do electrons do in a metallic bond?

• They stay on the metal atom.

• They are transferred from atom to atom.

• They form a covalent bond with another atom.

• They float around freely.

What is meant by the term "sea of electrons"?

• It's what we call all the free floating electrons in a metal.

• It's what we call electrons that are floating in a liquid.

• It's the total number of electrons in a metal atom.

• It's the total number of electrons in the ocean.

Tags

NGSS.HS-PS1-3