What are the electrons in the outermost energy level called?
100
A positively charged atom
What is a cation?
100
A mixture of two or more elements with at least one being a metal.
What is an alloy?
100
Ammonium
What is NH4+
200
GaN
What is gallium nitride?
200
The number of valence electrons in Rubidium.
What is one?
200
When forming compounds, atoms tend to achieve the electron configuration of noble gasses.
What is the octet rule?
200
Their properties are often superior to those of their component elements.
Why are alloys used?
200
Beryllium nitrate
What is Be(NO3)2?
300
Calcium fluoride
What is the name for CaF2
300
The electron dot structure of Iodine
What is
300
A metal and a nonmetal
What are the two types of elements most likely to form an ionic compound?
300
Because the metal cations are surrounded by a free-flowing sea of electrons.
What does a metal not shatter when hit with a hammer?
300
AlPO4
What is aluminum phosphate?
400
Copper(II) oxide
What is CuO
400
The electron configuration of the Fluoride ion
What is 1s22s22p6
(F-)
400
Only when dissolved or melted.
When can ionic compounds conduct electricity?
400
Because the electrons are free-flowing they are able to enter one section of a metal while simultaneously other electrons are leaving the metal.
Why are metals conductive?
400
Cr(OH)3
What is Chromium(III) hydroxide?
500
Sn3P4
What is tin(IV) phosphide?
500
The number of valence electrons in Copper.
What is one?
500
The ions are rearranged such that the crystal structure has cations next to other cations along with anions being next to other anions. Hence the structure will shatter.
What happens when an ionic compound is forcibly hit by another object?
500
The type of alloy where the atoms are roughly they same size and replace one and another in the crystal structure.