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Atomic Structure
General Chemistry
Periodic Table
Chemical Equation
Labs
100
What is an electron
This particle has a negative charge and is located in the electron cloud.
100
What number in a chemical formula determines the number of atoms in a chemical formula?
The subscript shows the number of atoms of an element.
100
What are the horizontal rows on the periodic table called?
Periods
100

It's the name of the whole numbers in front of a particle in a chemical equation.

What is a coefficient?

100

Cutting grass, bending glass, breaking wood splints are all examples of this.

What are physical changes?

200
What particles are located in the nucleus?
Neutrons and Protons
200
What number is used to balance chemical equations?
To balance an chemical equation coefficients are used.
200
What are the vertical columns on the periodic table called?
Groups
200

It's the number below the line of type, that indicates the total atoms of a give element in a chemical formula.

What is a subscript?

200

Burning wood, making ethyne, iodine clock experiment, electroplating copper are these type of reactions.

What are chemical reactions ?

300
What are the three subatomic particles and what are their charges?
Neutrons neutral, protons +1, electrons -1
300
What is an alloy?
An alloy is a mixture of two or more different metals.
300
Are there more non-metals or metals on the periodic table?
Metals are the most numerous elements on the periodic table.
300

It's the name of the numbers that balance chemical equations.

What are coefficients ( moles)?

300

Radiation ranging from low and long radio waves to gamma waves.

What is the Electromagnetic Spectrum ?

400
What subatomic particle determines which element an atom is?
The number of protons determines the element.
400
Give an example of an alloy.
Stainless steel, brass, bronze, mercury amalgams, and 12-karat gold are examples of alloys.
400
What group of metals is the most reactive?
Group one metals are the most reactive metals.
400

It's the chemist counting unit, the lowest ratio are the coefficients in a balanced equation.

What is a mole?

400

Mass is measured in these two types of units.

What are grams and liters ?

500
What is a subatomic particle?
Neutron, proton, electron
500
What is the difference between a chemical change and a physical change?
Chemical changes produce one or more new substances while physical changes do not create new substances.
500
List the diatomic elements.
The diatomic elements are: hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine and iodine.
500

These are the names of the parts of a chemical equation.

What are the reactants yields products ?

500

One mole of this element has a mass of 1.008 grams.

What is the molar mass of hydrogen?