Atoms,Bonding and the Periodic Table
Ionic Bonds
Covalent Bonds
Challenge
Vocab
100
These are those electrons that are held most loosely in an atom.
What are valence electrons?
100
An atom or group of atoms that has an electric charge.
What is an ion?
100
The chemical bond formed when two nonmetal atoms share electrons.
What is a covalent bond?
100
These properties are shared by most molecular compounds.
What are low melting points, low boiling points, do not conduct electricity when dissolved in water?
100
This tells you the ratio of elements in a compound.
What is a subscript?
200
This is how the periodic table is arranged.
What is by increasing atomic number?
200
This happens to an atom when it loses an electron.
What is an atom loses a negative charge and becomes a positive ion?
200
A neutral group of atoms joined by a covalent bond is known as this.
What is a molecule?
200
The order in which the atoms in an ionic compound are written as a chemical formula.
What is positive ion first, followed by the negative ion?
200
A type of chemical bond formed when atoms share two pairs of electrons.
What is a double bond?
300
These are elements that are in the same column in the periodic table.
What is a group or family?
300
A combination of symbols that shows the ratio of elements in a compound.
What is a formula or chemical formula?
300
A type of covalent bond in which electrons are shared unequally.
What is a polar bond?
300
These are the most reactive nonmetals.
What are the Group 17 (halogens) elements?
300
A diagram that includes a symbol of the element surrounded by dots.
What is an electron dot diagram?
400
Eight is the greatest number of these.
What are valence electrons?
400
The bond formed as a result of the attraction between two oppositely charged ions.
What is an ionic bond?
400
A compound that is composed of molecules.
What is a molecular compound?
400
The number of group 17 element(s) needed to react with one atom of a Group 2 element.
What is two?
400
This is a type of covalent bond in which electrons are shared equally.
What is a nonpolar bond?
500
The bond formed by the force of attraction that holds atoms together as a result of the rearrangement of electrons between them.
What is a chemical bond?
500
These ions are made up of more than one atom.
What are polyatomic ions?
500
The bond that Nitrogen and Carbon can form.
What is a triple bond?
500
These are considered the building blocks of matter.
What are elements?
500
An orderly, three-dimensional pattern of ions or atoms formed as a solid.
What is a crystal?
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