Atoms and elements
What is the smallest unit of an element that retains the properties of that element?
atom
Which noble gas is used in neon signs and produces a red-orange glow?
Neon
Which halogen is commonly used in disinfectants and has the symbol "Cl"?
Chlorine
Which alkali metal is the lightest and is commonly used in rechargeable batteries?
Lithium
Which alkaline earth metal is the most abundant in the Earth’s crust and is commonly found in limestone?
Calcium
What are the subatomic particles that make up an atom?
Protons, Neutrons, and Electrons
This noble gas is used in balloons because it is lighter than air. What is it?
Helium
This halogen is used in light bulbs and has the symbol "I." What is it?
Iodine
This alkali metal is highly reactive and often stored in oil to prevent it from reacting with air. What is it?
Sodium
This alkaline earth metal, with the symbol "Mg," is commonly used in airplane construction. What is it?
Magnesium
Which part of the atom has a positive charge?
Proton
Which noble gas, with the symbol "Ar," is used in light bulbs to prevent the filament from burning?
Argon
Which halogen is the most reactive and is never found in nature in its pure form?
Flourine
Which alkali metal, with the symbol "K," is important for the function of cells in the human body?
Potassium
Which alkaline earth metal is often used in the production of fireworks and has the symbol "Ba"?
Barium
The number of protons in the nucleus of an atom determines what?
The element (Atomic number)
Which noble gas is used in some types of medical imaging and has the symbol "Xe"
Xenon
This halogen, with the symbol "Br," is commonly found in disinfectants and flame retardants. What is it?
Bromine
Which alkali metal is known to react explosively with water?
Potassium
This alkaline earth metal is essential for human health, especially in bone formation. What is it?
Calcium
What is the term for elements in the same vertical column of the Periodic Table that share similar chemical properties?
Group or family
This noble gas is odorless, colorless, and is the most abundant in the Earth's atmosphere. What is it?
Argon
Which halogen, when combined with sodium, is used in table salt?
Chlorine
This alkali metal is used in fireworks to create a bright red color. What is it?
Lithium
Which alkaline earth metal is commonly used in the manufacture of light bulbs to prevent the filament from burning out?
Beryllium