Elements and Atoms
Atoms, Bonding, and the Periodic Table
Ionic Bonds
Covalent Bonds
Metallic Bonds
100
Protons, neutrons and electrons.
What are the parts of an atom?
100
Valence electrons.
What are the electrons in the outer shell of an atom and the electrons which react with other atoms.
100
An atom or group of atoms that has an electric charge.
What is an ion?
100
A bond in which two electrons are shared.
What is a covalent bond?
100
Luster, heat and electrical conductivity, and ability to change shape.
What are qualities of metals due to metallic bonding?
200
A well tested idea that explains and connects a wide range of observations.
What is a scientific theory?
200
The valence electrons drawn as dots around the chemical symbol.
What is an electron dot diagram?
200
Electron(s) are transferred in bonding.
What is an ionic bond?
200
Two non-metals which share 4 electrons.
What is a double bond.
200
Bendablility.
What is malleability?
300
Positively charged protons unexpectedly passed through gold foil in 1911 rather than bouncing back.
What is Rutherford's gold foil experiment?
300
Atoms which have one valence electron.
What is an alkali metal?
300
Numbers written in a chemical formula.
What is a subscript?
300
Six electrons in a shared bond.
What is a triple bond?
300
Ability to be drawn out into a wire.
What is ductility?
400
Electrons mo ve rapidly around the nucleus in every direction.
What is an electron cloud?
400
This family of elements need one electron to fill their valence shell.
What are halogens?
400
High melting point and very conductive when mixed with water.
What is an ionic bond?
400
Covalent bond in which one element pulls the electrons closer to its nucleus.
What is a polar covalent bond?
400
Sea of electrons.
What is a description of metallic bonds.
500
A pure substance made of two or more elements that are chemically combined in a specific ratio.
What is a compound?
500
This group of elements have a full octet of valence electrons. They are inert, which means completely unreactive.
What are noble gases?
500
The chemical formula of table salt with 800 degree F melting point.
What is NaCl?
500
Low melting and boiling point plus poor conductivity.
What are the properties of compounds with covalent bonds?
500
Material made of two or more elements with the properties of a metal.
What is an alloy?
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