Vocabulary
Classification of elements that is located to the right of the zigzag line in the periodic table
Nonmetals
shares some characteristics of metals, some characteristics of nonmetals
Metalloid
What is the only nonmetal element that is located on the left side of the Periodic Table?
Hydrogen
Compare the reactivity of metals on the left and right sides of the periodic table
Very reactive on the left Less reactive on the right
What is the classification of these characteristics? SHINY, BRITTLE, SEMICONDUCTOR, SOLID
Metalloid
What classification has these characteristics: DULL, INSULATOR, BRITTLE, NON-MALLEABLE
Nonmetal
Group 15 of the periodic table with 5 valence electrons (think: atmosphere!)
Nitrogen Family
How do the noble gases differ from the other elements?
The noble gases are chemically very stable and unreactive.
What is ductility?
metal that can be made into wire
Where do hydrogen nuclei and helium nuclei fuse to create heavier elements
in stars, such as the sun
Sulfur, Polonium, and Oxygen are elements that are a part of what family/group?
Oxygen family - group 16
If you point to an element in the periodic table at random, is it more likely to be a Metal, Nonmetal, Metalloid?Why?
Metal. 80% of the periodic table is composed of metals
Gas-like mixture of free electrons and atoms stripped of electrons
plasma
Carbon family is considered to be _____________ because of its 4 valence electrons
The Halogen family of the periodic table is very reactive because it has _________ valence electron and is in group _________
7 valence electrons / group 17
Describe an important use of metalloids
Electricity. Semiconductors are used to make computer chips, transistors, and lasers
Process in which two atomic nuclei combine to form a larger nucleus, releasing huge amounts of energy
Nuclear Fusion
What 3 groups of the periodic table have a mix of 3 different classifications (metals, nonmetals, and metalloids)?
Groups 14-16
Elements heavier than iron are formed through nuclear fusion in _________________
Supernovas
Why is plasma not found on Earth?
Plasma requires high extremes of pressure and temperature, conditions that are no available on Earth