Chemical Elements
This element has the chemical symbol "H" and is the lightest and most abundant element in the universe.
What is Hydrogen?
This term describes the ability of an element to combine with other elements and form compounds.
What is Reactivity?
This physical property refers to the measure of the amount of matter in an object and is typically measured in grams or kilograms.
What is Mass?
The formula for density is mass divided by what other property?
What is Volume?
How many elements are there in the modern periodic table?
What is 118?
This element, with the chemical symbol "Fe," is a key component of steel and is known for its magnetic properties.
What is Iron?
The pH scale measures the acidity or alkalinity of a substance. A pH value of 7 is considered neutral. What pH range is considered acidic?
What is less than 7?
This property of matter refers to its resistance to flow and can be described as thick or thin.
What is Viscosity?
Solids, liquids, and gases can all have density, but which state of matter typically has the highest density?
What is Solid?
Elements in the same ___________ on the periodic table have similar chemical properties.
What is column?
This noble gas, with the chemical symbol "Ne," is commonly used in neon signs due to its bright red-orange glow when electrically charged.
What is Neon?
This property of matter refers to its ability to burn or support combustion.
What is Flammability?
When water boils at 100 degrees Celsius, it undergoes a physical change and changes from a liquid to a gas. What is this change called?
What is Vaporization (or Boiling)?
If you have a block of wood with a density of less than 1 g/cm³, what will it do when placed in water?
What is Float?
The periodic table is organized by increasing ___________.
What is Atomic Number?
This element, with the chemical symbol "O," is essential for respiration in humans and is found in the atmosphere as a diatomic molecule.
What is Oxygen
This type of chemical reaction involves the combination of two or more substances to form a new compound.
What is Synthesis (or Combination) Reaction?
This physical property describes the amount of space an object occupies and is typically measured in cubic units.
What is Volume?
An object will sink in a fluid if its density is ___________ than the density of the fluid.
What is Greater (or Higher)?
This element, with the atomic symbol "He," is the second most abundant element in the universe and is often used in balloons.
What is Helium?
This radioactive element, with the chemical symbol "U," is used as fuel in nuclear reactors and was used in the first atomic bombs.
What is Uranium?
This property of a substance determines the ease with which it can be hammered or rolled into thin sheets.
What is Malleability?
This property of matter is a measure of how much mass is contained in a given volume and is often expressed in grams per milliliter (g/mL).
What is Density?
This famous principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.
What is Archimedes' Principle?
Elements in the same ___________ on the periodic table have the same number of valence electrons.
What is Group (or Family)?