Parts of an atom
positive part of the atom
proton
Noble Gases are found in group:
Group 18
What is a metalloid?
An element that has physical and chemical properties of both metals and nonmetals
What are properties of metals?
luster, malleability, ductility, conductivity, high density, melting and boiling points
What property do all metalloids share?
They are all semiconductors
Negative part of an atom
electron
Alkali Metals are found in which group?
Group 1
A column on the periodic table is called a:
What is a group?
Properties of nonmetals
gas at room temperature, solid at room temperature, dull surface, no luster, good insulators
What is the most common element in the universe?
What is hydrogen?
neutral part of an atom
neutron
Transition metals are in group:
Groups 3-12
What is a physical change?
Change can occur in size, shape, form or state of matter, but does NOT change the matters identity.
Properties of metalloids
properties of both metals and nonmetals
What are the four main elements that make up the human body?
What is carbon, oxygen, hydrogen and nitrogen?
Using the periodic table, how do we determine the number of protons?
the elements atomic number
Alkaline Earth metals are found in group:
Group 2
What is a chemical change?
A change in matter that changes into other substances with different chemical and physical properties
Chemical property of transition elements
React less with oxygen
Why is copper good for wiring?
It has high ductility and it is not as expensive as other metals.
Using the periodic table, how do we determine the amount of neutrons in the atom?
The atomic mass gives us the total of protons and neutrons. Subtract the mass from the atomic number to determine the amount of neutrons.
Metalloids are found where
Between the metals and nonmetals
malleability
ability to hammer into sheets
Uses of transition elements
coins, jewelry, electrical wires, industrial applications
What are some ways silicon is used in everyday life?
many parts on electronic devices, major ingredient in glass, used to make medical tubing