Groups 1 and 2
The most abundant element in the universe; found in the stars
What is hydrogen?
This element is used in electrical wiring
What is copper?
This element is used in cans, foil, and building materials
What is aluminum?
This element is essential for cellular respiration and makes up approximately 20% of the air we breathe
What is oxygen?
This element is found in disinfectant and bleach
What is chlorine?
This group of elements is unreactive
What is lithium?
This element is used to make steel
What is iron?
This element is found in laundry detergent
What is boron?
This element makes up approximately 78% of the air we breathe. It is found in our DNA.
What is nitrogen?
This element is found in toothpaste to prevent cavitities
This group of elements consists of the most reactive metals
What are the alkali metals?
This element is found in bananas. Identify the chemical symbol.
What is K?
True or False: The transition metals are unreactive.
This element is found in sand, rocks, and soil. It is a semi-conductor.
What is silicon?
This element protects us from sun's radiation where it exists in the upper atmosphere
What is oxygen?
This element is used for hormone regulation in the thyroid gland
What is iodine?
This group of elements contains the most reactive NONmetals (name the group)
What are the halogens?
The name for group 1
What are the alkali metals?
The name for groups 3-12 (not including the bottom two series)
What are the transition metals?
This is found in diamond and graphite
What is the carbon?
This is the name of group 15
What is the nitrogen group?
This is the name for group 18 elements
What is an alloy?
The name for group 2
What are the alkaline earth metals?
This series contains all radioactive elements.
What are the actinides?
Elements in group 13 have this many valence electrons
What is 3?
O3 is known more commonly as
What is ozone?
This is the name given to group 17 elements
What are the halogens?
The name given to a molecule that consists of two atoms of the same element
What is diatomic?