Chapter Three, Lesson Four: Nonmetals and Metalloids Flashcards
1
Q
nonmetal
A
A nonmetal is an element that lacks most of the properties of a metal.
2
Q
diatomic molecule
A
A diatomic molecule is made up of two atoms.
3
Q
halogens
A
Group 17 contains the nonmetals fluorine, chlorine, bromine, and iodine. These elements are also known as the halogens, which means “salt-forming.”
4
Q
noble gases
A
The elements in Group 18 are known as the noble gases.
5
Q
metalloids
A
The metalloids have some properties of metals and some properties of nonmetals.
6
Q
semiconductors
A
Semiconductors are substances that can conduct electric current under some conditions but not under other conditions.
