This is the center of the atom.
What is the nucleus?
Groups and Families are __________ or up and down on the periodic table.
What is columns?
These characteristics must be met in order to be classified as matter.
What is has mass and takes up space?
Atoms are the building block of _____.
What is matter?
An element's is identified by its ___________.
What is the atomic number or number of protons?
Elements in a family/group are in the same column because they __________.
What is they have similar chemical properties?
H3PO4 contains _________ Oxygen atoms.
What is 4?
This is the part of the atom that has no charge_____. It is located ____________.
What is the neutron and nucleus?
The periodic table has ______ elements.
What is more than 100 (100+)?
Most elements are classified as _________.
What are metals?
True or false. Law of conservation of mass means that the number of atoms of the products is more than the number of atoms in the reactants.
What is false?
Electron cloud or around the nucleus
Out of these listings, I would pick ______ as symbols:
MG, He, Ag,NaCl, B
What is He, Ag and B?
Oxygen belongs to what group # and has these family members:
What is Group 16; Sulfur, Selenium, Tellurium, Polonium?
Law of conservation of mass states that
What is matter is neither created or destroyed?
These two parts of the atom have opposite charges and keep the atom "balanced."
What is the proton and the electron?
How to you calculate the number of neutrons in an atom?
Atomic mass - atomic number.
These are the four things each of the periodic squares tells you about an element.
What is Chemical Symbol, Element Name, Atomic Number, Atomic Mass?
These two elements have share similar chemical properties: Aluminum & Silicon; Sodium & Beryllium; Magnesium & Manganese; or Potassium & Rubidium.
What is Potassium & Rubidium?
If four hydrogen atoms react with two hydrogen atoms, _______ atoms will be in the product.
What is six?