Parts of the Periodic Table
What is the term for the horizontal rows in the periodic table?
Periods
What is a physical property is most commonly associated with metals?
Good conductors, ductile, malleable, shiny, hard
Name a non-metal that is found in the atmosphere.
Oxygen, nitrogen, hydrogen, etc.
What are metalloids often used for in industry?
Semiconductors
What are the three main subatomic particles?
Proton, Neutron, Electron
Which group of elements is known for having 7 valence electrons?
Group 17/ Halogens
What state of matter are metals commonly found at?
solid
What is the state of most nonmetals at room temperature?
Gas
Name a property that metals share with metalloids.
Can conduct electricity. shiny.
Where are protons located in an atom?
Nucleus
What is the significance of the atomic number in the periodic table?
It is the number of protons in an atom
Which side of the periodic table are metals more reactive?
left
Name a property of nonmetals.
Brittle, nonconductors, opposite of metals
Where are the metalloids located on the periodic table?
On the staircase
What charge do electrons carry?
Negative
What is the group name for group 3-12
Transition Metals
How many valence electrons do alkali metals have?
1
Name a nonmetal that is solid at room temp.
carbon, sulfur, phosphorus, selenium, and iodine
How do metalloids behave in terms of conductivity?
At time will be conductive but at others won't, this is why they are good semiconductors.
What is the nucleus of an atom comprised of?
Protons and Neutrons
What is the name of group 1
Alkali Metals
name a metal that is found as a liquid at room temperature
mercury
Which way do electrons flow if a nonmetal and metal react
to the nonmetal
Which metalloid is commonly used in semiconductors?
Silicon
Explain the role of valence electrons in chemical bonding.
Valence electrons share or transfer to bond to together