A mixture of two or more elements, one of which is a metal.
What is an alloy?
100
Alloys are generally ____________ and less likely to react with air or water than are the pure metals from which they are made.
What is stronger?
100
Which is NOT a property of a metal?
A. has luster (shiny)
B. conducts heat
C. conducts electricity
D. secretly wishes it was is a potato
What is D. secretly wishes it was is a potato
100
What the subscript 2 in H2O means.
What is it means there are 2 hydrogen atoms?
100
A chemical bond formed when atoms share three pairs of electrons.
What is a triple bond?
200
An atom or group of atoms that has become electrically charged.
What is an ion?
200
When an atom gains an electron, it becomes a _________________________ ion.
What is negative?
200
The metal atoms in stainless steel are held together by
A. ionic bonds.
B. polar bonds.
C. covalent bonds.
D. metallic bonds.
What is metallic bonds?
200
This is why stainless steel is better than iron.
What is it doesn’t rust?
200
An attraction between a positive metal ion and the electrons surrounding it.
What is a metallic bond?
300
The electrons that are in the highest energy level of an atom and that are involved in chemical reactions.
What is a valence electron?
300
When an atom loses an electron, it becomes a ___________________ ion.
What is positive?
300
What is an orderly, three—dimensional pattern of ions or atoms in a solid.
A. valence electron
B. crystal
C. subscript
D. covalent bond
What is B. crystal
300
This is why noble gases usually do not react.
What is they have 8 valence electrons?
300
The attraction between oppositely charged ions.
What is ionic bond?
400
A representation of the valence electrons in an atom, using dots.
What is an electron dot diagram?
400
The model of solid metals that explains the ease with which they can change shape, their ability to conduct electric current, their luster, and their ability to conduct heat.
What is the “sea of electrons” model?
400
The force that holds atoms together in a covalent bond is the attraction of each atom’s nucleus for the what?
A. neutrons
B. shared electrons
C. ions
D. protons
What is B. shared electrons
400
This is why ionic compounds generally have high melting points?
What is they have strong bonds?
400
A covalent bond in which electrons are shared unequally
What is a polar bond?
500
A combination of symbols that represents the elements in a compound and their proportions.
What is chemical formula?
500
This is when ionic compounds like salt conduct electricity?
What is when dissolved in water?
500
What is a covalent bond in which electrons are shared equally.
A. ionic bond
B. metallic bond
C. James Bond
D. nonpolar bond
What is D. nonpolar bond
500
In metallic bonding this is what positive metal ions are attracted to.
What is the “sea” of valence electrons?
500
A chemical bond formed when atoms share electrons.