The name of the nonmetals in Group 17.
What is Halogen?
Same elements with different number of neutrons.
What are isotopes?
The term for the temperature at which a liquid changes into a gas.
What is boiling point?
Elements that do not occur in nature.
What is synthetic?
The term for an atom in which the number of electrons does not match the number of protons.
What is an ion?
A vertical column of elements in the periodic table.
What is a group?
Elements that have no stable isotopes.
What are radioactive elements?
The ability to transfer heat.
What is thermal conductivity?
Ductile, malleable, luster, and conductivity are all properties of this category of elements.
What are metals?
Two substances combined so that each retains its own properties.
What is a mixture?
An atom which has lost or gained an electron.
What is an ion?
This is conserved in both physical and chemical changes.
What is mass?
Any change in size, shape, or state which does not change the identity.
What is a physical change?
Examples of these are: it burns easily; it rusts; it forms certain kinds of bonds.
What are chemical properties?
When sugar is dissolved in water, neither the sugar nor the water lose this characteristic.
What is identity?