Each family in the periodic table has its own characteristic properties based on the number of...
What is valence electrons
100
When an atom loses an electron, it becomes a
What is positive ion
100
A chemical bond formed when two atoms share electrons is called a
What is covalent bond
100
What do we call the electrons involved in bonding between atoms
What is valence electrons
100
What is the greatest number of valence electrons an atom can have?
What is 8
200
In what form can an ionic compound conduct electricity?
What is dissolved in water
200
An ionic bond is the attraction between
What is oppositely charges ions
200
What is it when two pairs of electrons are shared between two atoms
What is double bond
200
In a chemical formula for an ionic compound, which item is written first?
What is positive ion
200
What term describes metals ability to be rolled into thin sheets?
What is malleable
300
What is the chemical name for the compound with the formula Na2S
What is Sodium Sulfide
300
Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the "2" tell you?
What is there are two bromide ions for every magnesium ion.
300
Why do molecular compounds not conduct electricity?
What is because they do NOT break up into ions
300
A micture that is made of two or more elements-one that is a metal- that has properties of a metal is an
What is alloy
300
If atoms of a halogen nonmetal (group 17) gain one electron, at atoms then have...
What is 8 valence electrons
400
Ions that are made of more than one atom are examples of...
What is polyatomic ions
400
When a covalent bond shares its electrons unequally it is called
What is polar
400
What advantages to alloys have over pure metals
What is stronger and resist rust
400
What term describes the ability to be pulled into thing strange or wires?
What is ductile
500
What do we call the attraction between a positive metal ion and the electrons surrounding it?
What is metallic bond?
500
Give an example of a property of ionic compounds
What is hard brittle crystals, high melting points, conduct electricity when dissolved
500
When molecules contain two polar bonds they are...
What is sometimes polar
500
What strong alloy, containing carbon, iron and another metal like chromium or nickel is used to make construction equipment, bike frames and train rails?