P-block Elements Group -15,16,17,18 Flashcards
What are nitrogen group elements (nictogens), and what is group 15 also known as? Write the names of the group 15 elements.
Group 15 elements are also called Pnictogens.
The elements in group 15 are:
- Nitrogen (N)
- Phosphorus (P)
- Arsenic (As)
- Antimony (Sb)
- Bismuth (Bi)
What are the elements in group 15 of the periodic table commonly known as?
Nitrogens
Which element in group 15 is a gas at room temperature?
Nitrogen
True or False: Phosphorus is a metalloid.
False
Which group 15 element is most abundant in the Earth’s crust?
Phosphorus
What is the primary natural source of nitrogen in the atmosphere?
Nitrogen gas (N2)
Which group 15 element has allotropes that include white, red, and black forms?
Phosphorus
What is the most stable allotrope of phosphorus?
Red phosphorus
True or False: Arsenic is a non-metal.
False
What is the primary use of arsenic in industry?
As a semiconductor and in alloys
Which element in group 15 is known for its role in organic chemistry as a building block for amino acids?
Nitrogen
Fill in the blank: The element ______ is commonly found in the mineral orpiment.
Arsenic
Which group 15 element is primarily obtained from the mineral galena?
Lead (though not a group 15 element, lead is often discussed in relation to arsenic mining from galena)
What is the most toxic group 15 element?
Arsenic
Which group 15 element is used in the production of semiconductors?
Antimony
True or False: Bismuth is a highly toxic element.
False
What is the primary use of bismuth in medicine?
As a treatment for gastrointestinal issues
Which group 15 element is essential for the production of DNA and RNA?
Nitrogen
What is the occurrence of nitrogen in the Earth’s atmosphere?
About 78% by volume
Fill in the blank: The element ______ is often used in flame retardants.
Antimony
Which group 15 element is primarily extracted from the mineral stibnite?
Antimony
What is the primary form of nitrogen found in fertilizers?
Ammonium (NH4+) or Nitrate (NO3-)
True or False: Nitrogen can form compounds with all elements except noble gases.
True
Which element in group 15 is often used as a doping agent in electronics?
Phosphorus
