Periodic Table
What is the first element found on the Periodic Table?
Hydrogen
The number of protons found in the nucleus of an atom is called __________________
"He" is the symbol for which element?
Helium
Define energy
Energy is the ability to cause change
Change of state from a gas to a liquid.
What is condensation?
What group of elements are found in a staircase pattern on the Periodic Table?
Metalloids
Fe is the chemical symbol for this element.
What is iron?
What does NaCl stand for?
Energy stored in the nucleus of an atom.
What is nuclear energy?
The change of state from a liquid to a gas.
Evaporation
There are ___ periods in the periodic table which are the found in the vertical row or horizontal column of elements.
7 periods found in the horizontal row
The ability of one substance to dissolve in another.
What is Solubility?
Protons have a _____________ charge, Electrons have a ____________ charge and Neutrons have _______ charge.
Electrons negative
Neutrons no charge
The energy an object possesses due to its motion (e.g., a swinging pendulum, flowing water).
Kinetic Energy
Stored energy based on an object's position, state, or structure (e.g., a drawn bowstring, water held behind a dam).
Potential Energy
There are ___ groups in the periodic table which are the found in the vertical row or horizontal column of elements.
18 groups and vertical column
A characteristic of matter that can be observed or measured without changing the substance’s chemical composition.
What is Physical property?
What is a symbolic representation of a chemical reaction, showing reactants on the left and products on the right, separated by a directional arrow called?
Example: 2H2(g) + O2(g) → 2H2O(g)
Chemical Equation
A system that does not exchange matter or energy with the environment.
What is Closed system?
A material that does not allow energy to flow through easily.
An insulator
Who is credited with creating the Periodic Table?
Dmitri Mendeleev
What do we call the characteristics of matter that can be observed as it changes to a different type of matter?
Chemical change
Name 4 parts of an atom.
Nucleus, electrons, proton, neutrons
Energy cannot be created nor destroyed but can be transformed from one form of energy to another. What is this called?
The Law of Conservation of Energy
Name the four parts of the water cycle.
Evaporation, Condensation, Precipitation, and Infiltration