Metals
Nonmetals and metalloids
Radioactivity
100
Almost all metals are shinny, another word for this is
Luster
100
These elements have some properties of metals and some properties of nonmetals.
Metalloid
100
Scientists use the amount of radioactive isotopes found in rocks and fossils to calculate the ages of the rocks and fossils. This process is called what?
Radioactive dating
200
a metals ability to conduct electrical current is called.
electrical conductivity
200
elements in the carbon family are located in group 14. all elements in this group would have how many valence electrons
4
200
During Radioactive decay radiation is released in three forms by a unstable atomic nucleus which actually changes the atom's identity. True or False
True
300
A metals ability to transfer heat is called.
Thermal conductivity
300
Argon (atomic number 18) belongs to which family?
Noble gas family
300
A electron dot diagram shows an atom's number of
valence electrons
400
This property of metals allow the metal to be bent, molded, and formed into various shapes without breaking
Malleable or malleability
400
Name the 4 properties of nonmetals
1. poor conductor of heat
2. poor conductor of electricity
3. dull
4. brittle
400
What is the force of attraction that holds two atoms together?
chemical bond
500
This property of metal allows it to be drawn into wires.
ductile
500
These substances that are metalloids are good conductors of electricity under certain conditions but under other conditions they are not good conductors of electricity
semiconductors
500
unstable atomic nuclei that release fast moving particles and energy are
Radioactive