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Atoms
Elements
Compounds
Atomic Bonding
Acids and Bases
100
Number of protons in an atom's nucleus
What is atomic number
100
Given the atomic number is 28 and atomic mass is 59, this is the number of electrons in the element Nickel
What is 28
100
Water is an example of this
What is compound
100
Water is an example of this type of bonding
What is covalent bonding
100
Ionic compound that contains positive ions and negative ions
What is a salt
200
What scientists think about atoms
What is atomic theory
200
Symbols are quicker to write, easier to use than the full names, and makes communication around the world possible
What is why we use chemical symbols
200
Sodium, an alkali metal that is explosive, and chlorine, a poisonous gas, combine to form this
What is salt
200
Salt contains this type of bonds
What is ionic bonds
200
Salt contains this type of ions from a base
What is a negative ion
300
Special machines that smash atoms
What is a particle accelerator
300
number of protons and neutrons
What is atomic mass
300
Carbon dioxide has this many oxygen molecules
What is 2
300
An atom that has gained electrons to fill its outer shell
What is a negative ion
300
Substances that change color when exposed to acid or base solutions
What is an indicator
400
Devised a model of an atom based on the idea that electrons move in shells, very simplified model
Who is Niels Bohr
400
Given the atomic number is 12 and the atomic mass is 24, magnesium has this many protons in the nucleus
What is 12
400
The type of chemical reaction that occurs as the acids in your stomach interact with the food you just ate at lunch
What is decomposition reaction
400
Number of electrons that can make the third shell closed
What is 18
400
Pure water has a pH of this
What is 7 or neutral
500
Number of protons also equals the number of these in a normal atom
What is electrons
500
Given the atomic number is 47 and the atomic mass is 108, Silver has this many neutrons in its nucleus
What is 61
500
The chemical formula for baking soda is NaHCO. Baking soda is composed of these elements.
What is sodium, hydrogen, carbon, oxygen
500
All ionic compounds form these
What are crystals
500
One of the most basic solutions from both labs done in class
What is ammonia