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Periodic Table
Electron Dot Diagrams
Ionic Bonds
Covalent Bonds
Chemical Formulas
100
The number of electrons in the lowest energy level
What is 2 electrons?
100
The number of dots around Sodium?
What is one?
100
Sodium loses an electron
What is Na+?
100
When an electron is attracted to the nuclei of two atoms at the same time
What is a covalent bond?
100
the combination of chemical symbols and possibly numbers
What is the chemical formula?
200
The group that has two valence electrons?
What is group 2?
200

The number of dots around Nitrogen

What is 5?

200
Chlorine gains an electron
What is Cl-?
200
the overall charge of a particle that is covalently bonded
What is neutral?
200
The chemical formula for 2 atoms of carbon and 4 atoms of hydrogen
What is C2H4?
300
The group that has a full outer shell
What are the noble gases?
300
The number of dots around silicon
What is 4?
300
The attraction between a positive ion and a negative ion
What is an ionic bond?
300
The particle formed when atoms share electrons
What is a molecule?
300
the number of atoms of hydrogen in hydrogen gas
What is 2?
400
the number of electrons in bromine's outer shell
What is 7?
400

the number of dots around Oxygen

What is 6?

400
A pure substance containing two or more elements
What is a compound?
400
When a atom shares two electrons with another atom
What is a double bond?
400
The number of atoms of hydrogen in ammonia
What is 3?
500

This increases as you move DOWN a group

What is the atom's size?

500

The number of dots around Helium

What is 2?

500

Calcium loses 2 electrons

What is Ca2+

500
The type of bond between 2 nitrogen atoms
What is a triple bond?
500
the total number of atoms in a molecule of carbon dioxide
What is 3?