Periodic Table
Vertical columns on the periodic table are called?
What are groups?
Symbol for Helium is ……
What is He?
A homogeneous mixture made of two or more substances is called ______________
A solution
Forces that hold atoms together are ……
What is chemical bonds?
Which group of elements are located on the left and center of the table. They are typically good conductors of heat and electricity.
Metals
Horizontal rows in the periodic table of elements are ………
What are Periods?
What does the atomic symbol C stand for?
What do we call something that is manmade?
Synthetic
Mixtures that you cannot see the different parts and every sample looks the same. Example: saltwater
Homogeneous mixtures
What group of elements are located in a diagonal 'staircase' and have properties of metals and non-metals?
Metalloids
What does is the chemical composition NaCl called?
Salt
Located to the right of Alkali metals and not as reactive are
What is Alkaline Earth Metals?
What are fossil fuels made of?
Fossil fuels are made of the remains of ancient plants and animals that contain carbon
What are fuels from recently living organisms called?
Biofuel
Which group of elements are found on the upper right (e.g., Halogens and Noble Gases). These elements are usually poor conductors and highly volatile.
Non-metals
What type of elements are a good conductor of heat and electricity?
Metals
Protons have a _____________ charge and electrons have a ______________ charge.
Protons positive
Electrons negative
A mixture made of parts that separate upon standing like oil and vinegar.
What is Suspension?
Heterogeneous mixtures
The _____________ number of an element is the number of protons in the nucleus (which dictates what the element is).
atomic
What are the four parts of an atom?
Nucleus, protons, electrons, and neutrons
The pair who helped discover the radioactive elements Polonium and Radium
Marie and Pierre Curie
3Fe + O2 —> Fe3O4
Balanced or Not Balanced?
What is Not Balanced?
How do animals get carbon into their bodies?
By eating plants or other animals
Who is credited with creating the Periodic Table?