Chapter7,lesson3 Flashcards
1
Q
Molecules
A
Is a particle that contains two or more atoms joined together.
2
Q
Non metals
A
A group of elements that are poor conducts of heat and electricity.
3
Q
Noble gases
A
The non metallic elements in the last column of the periodic table.
4
Q
Metalloid
A
Is a small group of elements with some properties of metals and some non metals.
5
Q
Atomic number
A
The number of protons in a single atom for an element.
6
Q
Periodic table
A
A chart that shows all the known elements and their properties.
