Which of these is NOT an alloy?

• bronze
• copper
• brass
• stainless steel

Electrons that are free to move in metals

• delocalized electrons
• oxidation number
• chemical bond
• salts

Tags

NGSS.HS-PS2-5

Why do metals conduct

• They are shiny
• The electrons are held tightly within the lattice
• The electrons are delocalised and able to move
• The electrons are shared between two metal ions

Metallic bonding is...

• a type of covalent bond.

• a type of ionic bond.

• an attraction between positive ions and freely moving electrons.

Why do metallic compounds conduct electricity as solids?

• core electrons are mobile, allowing electricity to flow through the metal

• valence electrons are mobile, allowing electricity to flow through the metal

• protons are mobile, allowing electricity to flow through the metal

• the metal cations are mobile, allowing electricity to flow through the metal

Tags

NGSS.HS-PS1-3

What is the basis of a metallic bond?

• the attraction of neutral metal atoms.
• the attraction between protons and neutrons.
• the attraction between positive metal ions and interlocking electrons.
• the attraction between positive metal ions and free floating electrons.

The ability of a material to deform, usually by stretching along its length. This property allows us to make wires.

• conductivity
• ductility
• malleability
• hardness

What is needed for a metallic bond to form?

• two nonmetals

• a metal and nonmetal

• metal atoms

• nonmetal atoms

Tags

112.35.c.7.D

Metals tend to do what with their valence electrons?

• gain electrons

• share electrons

• lose electrons

• do nothing with the electrons

Tags

112.35.c.7.D

The ability to be hammered into sheets is known as what?

• malleability

• ductility

• radioactivity

• conductivity

Tags

112.35.c.7.D