Atoms
This is the smallest particle that still can be considered an element
ATOM
increasing atomic number.
List the physical properties of metals :
Luster, Malleability, Ductility, and Conductivity ( Good conductors of heat and electricity )
Elements that have some properties of metals and some properties of nonmetals
FALSE; The identity of an atom changes.
Name the parts of an atom
The columns in the periodic table are called :
Groups
How are metals classified? Hint: there are 6 ways to classify metals
1.Alkali Metals
2.Alkaline Earth Metals
3.Transition Metals
4.Metals in mixed groups
5.Lanthanides
6.Actinides
Substances that can conduct electric current under some conditions but not under other conditions.
Semiconductors
What are the three things radioactive decay can produce?
2. Beta particles
3. Gamma Rays
The small region at the center of an atom
NUCLEUS
The ability of an object to transfer heat
Thermal Conductivity
1. Poor conductors of electric current and heat
2. Dull
3. Brittle
The length of time needed for half of the atoms of a sample to decay
Half-life
Which particles live inside the nucleus?
Protons and Neutrons
What 3 parts of an element does the periodic table contain for each element?
1. Atomic Number
2. Atomic Mass
3. Chemical Symbol
The deterioration of a metal due to a chemical reaction in the environment is called :
corrosion
What are the families containing nonmetals?
The carbon family, the nitrogen family, the oxygen family, the halogen family, the noble gases, and hydrogen.
Radioactive isotopes that can be followed through the steps of a chemical reaction or an industrial process.
Tracers
The number of protons in the nucleus of an atom
ATOMIC NUMBER
What can we predict about an element based on it's location on the periodic table?
For example, Hydrogen and Lithium have this in common, because they're in the same group.
It's properties!
The ease and speed with which an element combines, or reacts, with other substances is called:
For example, sodium (Na) _________ strongly with water.
reactivity
Name a nonmetal in the Noble gases family.
Hint, when these gases are burned they produce light.
Possible answers:
Helium, neon, argon, krypton, xenon, radon
Name one use of radioactive isotopes
-Determine the ages of fossils
- tracing the steps of chemical and industrial processes
-providing sources of energy