Vocabulary
This is a positively charged particle
Proton
What are the three subatomic particles of an atom?
Protons, neutrons, electrons
The vertical columns are called _.
Groups or Families
These can't be broken down into anything else...
Elements
If the mass of water is 100 grams, what would you expect the mass of ice to be to illustrate the Law of Conservation of Mass?
100 grams
This table contains over 100 elements.
The Periodic Table
The atomic number is the number of _ and _.
protons, electrons
The rows are called _.
Period
A substance that has two or more elements or compounds not chemically combined is called a _.
Mixture
False.
These type of elements are shiny and good conductors of electricity.
Metals
The mass of the atom is in the _.
Nucleus
Left, right
A substance that is mixed evenly and the particles aren't visible.
Homogeneous mixture
According to the Law of Conservation of Mass, the mass of the reactants will _ the mass of the products.
Equal or be the same
This is the space outside of the nucleus.
Electron cloud
The atomic mass tells you the number of _ and _.
Protons and Neutrons
The three types of elements are _,_, and _.
Metals, metalloids, and non-metals
Two or more elements chemically combined is called a _.
Compound
The Law of Conservation of Matter states that matter can be created or destroyed. True or False.
False.
This is the first family of the Periodic Table
Alkali Metals
What is the charge of an atom?
Neutral
What is the type of electron on the outermost energy level?
Valence electron
A substance that can be separated physically is a _.
MIxture
According to the Law of Conservation of Matter, matter doesn't disappear, but it changes form. What are the three forms?
Solid, liquid, gas