The Periodic Table
Name of the columns in the periodic table.
What is a group?
These are formed when an atom loses or gains electrons to have an electric charge.
What are ions?
In a double bond __ pairs of electrons are shared. That's a total of __ electrons.
What are 2 (pairs) & 4 (total electrons)?
This is a mixture made of 2 or more elements that have properties of a metal.
What is an alloy?
The mix of symbols & numbers that show the proportion of elements in a compound; MgCl₂ is an example of one.
What is a chemical formula?
Name of the rows in the periodic table.
What is a period?
These two types of atoms or elements are needed to form an ionic bond.
What are a metal & nonmetal?
This describes how electrons behave in a metallic bond - where positive metal ions are attracted to the electrons surrounding it.
What is the "sea of electrons"?
Identify the part of the the following sentence that is false: Valence electrons are loosely held by an atom's nucleus, shown using an electron dot diagram, can be shared or transferred in bonding, & weigh a lot.
What is electrons weigh a lot?
Name of the least reactive (most stable) group on the periodic table.
What are the noble gases?
Daily Double! When ionic bonds are formed, the compound has this overall charge.
What is no charge or neutral?
When atoms share one or more pairs of electrons equally the bond is called...
What is nonpolar covalent?
This is the subatomic particle that metals easily give away during bonding.
What are electrons?
What is a chemical bond?
As you move this direction, atoms become larger on the periodic table.
What is left to right?
The name of the following ion: Na₃N.
What is sodium nitride?
Water is this type of covalent bond.
What is polar covalent?
These are two properties that make alloys better for everyday use than the pure metals that are used to make them.
Alloys are stronger & less reactive to air & water than the pure metals that make them.
An element from this group would easily bond with chlorine.
What is group 1?
TRIPLE SCORE!!! An element has 6 valence electrons & 3 energy levels (electron shells). Which element is it?
What is sulfur?
The number of BERYLLIUM ions needed when it bonds with two nitride ions.
What is 3?
This is why a covalent bond formed between two atoms of the same element must be nonpolar.
These are the characteristics of metals & alloys - name 3.
What are: good conductors of electricity & heat, lustrous (shiny), & easily change shapes without breaking (hammered into sheets or drawn into wire)?
Ionic or Covalent bond: methane, CH₄.
What is a covalent?