Periodic Table
How many groups/families are on a Periodic Table?
What is 18?
A = P = E
M - A = N
What is atomic # = protons = electrons and
mass - atomic # = neutrons?
A representation of a molecule or compound and used to identify substances.
What is a chemical formula?
The formation of a new substance with different properties.
What is a chemical change?
Anything that has mass and takes up space.
What is matter?
Sulfur belongs to this group (metal, nonmetal, metalloid)
What is a nonmetal?
Subatomic particles found in the an atom's nucleus.
What are protons and neutrons?
The number of elements in the formula:
NaCl2O3
What are 3 elements?
Evidence of a new solid substance is formed from mixing two liquid substances together.
What is a precipitate?
The measurement of an objects speed and direction.
What is velocity?
What do elements in periods have in common?
What is the same number of energy levels?
Determines an element's chemical properties and reactivity.
What are valence electrons?
The number of carbon atoms in:
6CO2
What are 6 carbons?
Morgan mixes green food coloring and water together to form green water. This is evidence of a what type of change.
What is a physical change?
A baseball has a mass of 8kg and is accelerating at a rate of 3 m/s, what is the resulting net force?
What is 24N?
What are the 3 classifications of elements found on the Periodic Table?
What are metals, nonmetals and metalloids?
The name and charge of the subatomic particles found in the cloud.
What are negative charge and electrons?
The number of oxygen atoms in:
4Fe(OH)3
What are 12 oxygen atoms?
Emerson combines calcium (Ca) with hydrochloric acid (HCl). Emerson notices that a temperature change occurs and a gas is produced after she combines the two substances. What has taken place in this experiment.
What is a chemical reaction (change)?
The tendency of an object to resist any change in it's motion.
What is inertia?
Group 18 - He, Ne, AR, KR, Xe, Rn, Og
What are Nobel gases?
The charge of a whole atom that has 4 protons, 5 neutrons and 4 electrons.
What is a neutral charge?
The total number of atoms in the formula:
(NH4)2CO3
What are 14 atoms?
Evidence that a chemical reaction has occurred when energy is released or absorbed.
What is a change in temperature?
A biker traveled 60m in 6 seconds. What was the biker's speed?
What is 10 m/s?