Show:
Polyatomic
Monatomic
The Ionic Bond and Salts
Properties of Ionic Compounds
100
A polyatomic ion is a ___ with many ____.
What is Ion; Atoms
100
The elements in Group __ & __ tend to form cations.
What is 1A;2A
100
The chemical formula for table salt is ___.
What is NaCl, sodium chlorine
100
True or False. Most times, ionic compounds have higher melting points then the elements they are made of.
What is true
200
Most of these ions contain at least one ____ atom.
What is Oxygen
200
What makes an atom neutral?
When the protons and electrons are equal
200
True or false. An ionic bond is a weak bond and takes little energy to destory it.
What is false
200
Ionic bonds contain at least ____ the amount of energy then covalent bonds.
What is twice
300
True or False. When a hydrogen atom loses an electron, it floats around in nature by itself.
What is false
300
Copper (Cu) usually froms ..
What is a cation
300
When forming ionic bonds, metals ___ their electrons to ____.
What is give up; nonmetals
300
True of false. Covalent bonds conduct more electricity than ionic compounds.
What is false
400
Atoms with similar electronegativities and ionization energies tend to do what with their electrons?
What is Share
400
Hydrogen can form an anion with a -1 charge, which is called a _____. A hydride ion is very ____.
What is hydride ion;reactive
400
A ____ lattice has a repeating unit of alternating metal cations bound to nonmetal anions called a _____.
What is crystal; formula unit
400
What is wrong with this sentence? When force is applied, positive ions are pushed close to positive ions and negative ions close to negative ions. The electrostatic forces attracts the similarly charged ions and cause the crystal structure to shatter.
Change attracts to repel.
500
Krypton has an electronegativity of what?
What is 3
500
What is CN- ?
What is Cyanide ion
500
What is the difference between a molecule and a compound?
A molecule is held by a covalent bond while an ionic compound is held by ionic bonds.