The Structure of Atoms
Valence Electrons
Ionic Bonds
Covalent Bonds
Chemistry Terms
100

The subatomic particle that orbits the nucleus.


What is an electron?

100

The number of valence electrons around hydrogen?

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 subatomic particle that orbits the nucleus.

What is an electron?

200

The number of valence electrons around oxygen?

What is 6?

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 subatomic particles found in the nucleus.

What are protons and neutrons?

300

The number of valence electrons around chlorine

What is 7?

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 iron.

What is 26?

400

The number of valence electrons around sulfur

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

The number of neutrons in carbon-14.

What is 8?

500

The number of valence electrons around sodium.

What is 1?

500
A hard, crystalline compound composed of positive metal ions and negative non-metal ions
What is an ionic salt?
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?
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