Radioactive Elements
Atoms
Periodic Table
Metals
Nonmetals
100
Radioactive decay is an example of these type of reaction
What is Nuclear Reaction?
100
Location of protons and neutrons in an atom
What is the Nucleus?
100
These contain one or two letters pertaining to an element
What is a Chemical Symbol?
100
Metals are good _________________of electricity and heat
What are Conductors?
100
Location of most nonmetals on the periodic table
What is Top-Right?
200
Property of an element that emits radiation, found by Marie Curie
What is Radioactivity?
200
Particle in an atom with very little mass
What is an Electron?
200
The elements are arranged in increasing order of this
What is Atomic Number?
200
Term for material that can be hammered into sheets
What is Malleable?
200
Solid nonmetals tend to be dull and this, a term meaning easily broken
What is Brittle?
300
This type of particle contains two protons and two neutrons
What is an Alpha Particle?
300
The atomic number tells us the number of these
What are Protons?
300
Scientist who created the first periodic table
Who is Mendeleev?
300
Most reactive group of metals
What are Alkali Metals?
300
Very reactive group of nonmetals
What are Halogens?
400
This type of particle is a fast moving electron
What is a Beta Particle?
400
This atom model has electrons circle in clear orbits like the ring on an onion.
What is Bohr's Model?
400
Vertical columns in the periodic table are called families, or this
What are Groups?
400
One metal that is liquid at room temperature
What is Mercury?
400
Term for two atoms bonded together (like nitrogen)
What is Diatomic Molecule?
500
Process to find the half-life of fossils and plants
What is Radioactive Dating?
500
Atoms with the same number of protons but a different number of neutrons
What is an Isotope?
500
An element's ______________ can be predicted from its location on the periodic table
What are Properties?
500
Lead, tin and aluminum are examples of this group of metals
What are Metals in Mixed Groups?
500
These are elements that have some properties of nonmetals and metals
What are Metalloids?
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